What is 13.75 percent of 4.2 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 4.2 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 4.2 is 100%, so we can write it down as 4.2=100%.
4. We know, that x is 13.75% of the output value, so we can write it down as x=13.75%.
5. Now we have two simple equations:
1) 4.2=100%
2) x=13.75%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
4.2/x=100%/13.75%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 13.75% of 4.2

4.2/x=100/13.75
(4.2/x)*x=(100/13.75)*x       - we multiply both sides of the equation by x
4.2=7.2727272727273*x       - we divide both sides of the equation by (7.2727272727273) to get x
4.2/7.2727272727273=x
0.5775=x
x=0.5775

now we have:
13.75% of 4.2=0.5775