Answer :

Let's solve the given equation step by step:

1) The given equation is:

[tex]\[ \frac{z}{40} = \frac{16}{32} \][/tex]

2) To solve for \( z \), we can use the method of cross-multiplication. Cross-multiplication involves multiplying the numerator of one fraction by the denominator of the other fraction.

3) By cross-multiplying, we get:

[tex]\[ z \times 32 = 40 \times 16 \][/tex]

4) Now, calculate the right-hand side:

[tex]\[ 40 \times 16 = 640 \][/tex]

So, the equation simplifies to:

[tex]\[ 32z = 640 \][/tex]

5) To isolate \( z \), divide both sides of the equation by 32:

[tex]\[ z = \frac{640}{32} \][/tex]

6) Finally, calculate the division:

[tex]\[ \frac{640}{32} = 20 \][/tex]

Therefore, the value of \( z \) is:

[tex]\[ z = 20 \][/tex]