Home / 20,372.43-30,517.05-10,490.97

Finding the Fourth Proportional to 20,372.43, 30,517.05 and 10,490.97

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Solution

The fourth proportional to 20,372.43, 30,517.05 and 10,490.97 is: 15,715.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372.43 : 30,517.05 = 10,490.97 : x
  2. Step 2: Convert to fraction form
    20,372.43/30,517.05 = 10,490.97/x
  3. Step 3: Cross multiply
    20,372.43x = 30,517.05 × 10,490.97
  4. Step 4: Simplify right side
    20,372.43x = 320,153,456.04
  5. Step 5: Solve for x
    x = 320,153,456.04/20,372.43
  6. Step 6: Final answer
    x = 15,715.04

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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.