4 is 16% of 25.
Step 1: Translate the words into an equation.
4 | is | what percent | of | 25 |
4 | = | x | $ \cdot $ | 25 |
Step 2: Solve for $ x $.
$$ \begin{aligned} 4 &= x \cdot 25 \\[1.2 em] 25 \cdot x &= 4 \\[1.2 em] x &= \dfrac{ 4 }{ 25 } \\[1.2 em] x &= 0.16 \end{aligned} $$Step 3: Express $ x $ as a percentage.
$$ x = 0.16 = 0.16 ~~\cdot~~ 100 \% = 16 \% $$