21 is what percent of 1854 - 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 1854 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 1854, so we can write it down as 100%=1854.
4. We know, that x% equals 21 of the output value, so we can write it down as x%=21.
5. Now we have two simple equations:
1) 100%=1854
2) x%=21
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%=1854/21
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 21 is what percent of 1854

100%/x%=1854/21
(100/x)*x=(1854/21)*x       - we multiply both sides of the equation by x
100=88.285714285714*x       - we divide both sides of the equation by (88.285714285714) to get x
100/88.285714285714=x
1.1326860841424=x
x=1.1326860841424

now we have:
21 is 1.1326860841424% of 1854