Home / 20,737.40-31,073.70-17,432.60

Finding the Fourth Proportional to 20,737.40, 31,073.70 and 17,432.60

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Solution

The fourth proportional to 20,737.40, 31,073.70 and 17,432.60 is: 26,121.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.40 : 31,073.70 = 17,432.60 : x
  2. Step 2: Convert to fraction form
    20,737.40/31,073.70 = 17,432.60/x
  3. Step 3: Cross multiply
    20,737.40x = 31,073.70 × 17,432.60
  4. Step 4: Simplify right side
    20,737.40x = 541,695,382.62
  5. Step 5: Solve for x
    x = 541,695,382.62/20,737.40
  6. Step 6: Final answer
    x = 26,121.66

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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.