Answer :

To determine what number 4 is 16% of, we can follow these steps:

1. Understand the Problem:
- We need to find a number such that 16% of it equals 4.

2. Set Up the Equation:
- Let the unknown number be [tex]\( x \)[/tex].
- Therefore, 16% of [tex]\( x \)[/tex] equals 4. Mathematically, this is expressed as:
[tex]\[ 0.16x = 4 \][/tex]

3. Solve for [tex]\( x \)[/tex]:
- To isolate [tex]\( x \)[/tex], divide both sides of the equation by 0.16:
[tex]\[ x = \frac{4}{0.16} \][/tex]

4. Perform the Division:
- Calculate the division to find [tex]\( x \)[/tex]:
[tex]\[ x = 25 \][/tex]

5. Conclusion:
- Therefore, 4 is 16% of 25.

So, 4 is 16% of 25.