8.4 is what percent of 27.7 - 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 27.7 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 100% equals 27.7, so we can write it down as 100%=27.7.
4. We know, that x% equals 8.4 of the output value, so we can write it down as x%=8.4.
5. Now we have two simple equations:
1) 100%=27.7
2) x%=8.4
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:
100%/x%=27.7/8.4
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 8.4 is what percent of 27.7

100%/x%=27.7/8.4
(100/x)*x=(27.7/8.4)*x       - we multiply both sides of the equation by x
100=3.297619047619*x       - we divide both sides of the equation by (3.297619047619) to get x
100/3.297619047619=x
30.324909747292=x
x=30.324909747292

now we have:
8.4 is 30.324909747292% of 27.7