Home / 27,777.87-38,331.99-15,200.19

Finding the Fourth Proportional to 27,777.87, 38,331.99 and 15,200.19

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Solution

The fourth proportional to 27,777.87, 38,331.99 and 15,200.19 is: 20,975.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,777.87 : 38,331.99 = 15,200.19 : x
  2. Step 2: Convert to fraction form
    27,777.87/38,331.99 = 15,200.19/x
  3. Step 3: Cross multiply
    27,777.87x = 38,331.99 × 15,200.19
  4. Step 4: Simplify right side
    27,777.87x = 582,653,531.08
  5. Step 5: Solve for x
    x = 582,653,531.08/27,777.87
  6. Step 6: Final answer
    x = 20,975.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.