Home / 20,755.59-31,154.57-15,192.41

Finding the Fourth Proportional to 20,755.59, 31,154.57 and 15,192.41

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Solution

The fourth proportional to 20,755.59, 31,154.57 and 15,192.41 is: 22,804.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755.59 : 31,154.57 = 15,192.41 : x
  2. Step 2: Convert to fraction form
    20,755.59/31,154.57 = 15,192.41/x
  3. Step 3: Cross multiply
    20,755.59x = 31,154.57 × 15,192.41
  4. Step 4: Simplify right side
    20,755.59x = 473,313,086.75
  5. Step 5: Solve for x
    x = 473,313,086.75/20,755.59
  6. Step 6: Final answer
    x = 22,804.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.