If two numbers are 12% and 48% of a third number, what percentage is the first number of the second number?

Let the third number be 100.
First number = 12% of 100=12

Second number = 48% of 100=48

We need to find what percentage the first number is of the second number:

Percentage=(
Second Number
First Number
​
)×100%
Percentage=(
48
12
​
)×100%=
4
1
​
×100%=25%