Home / 20,654.40-31,001.94-14,737.80

Finding the Fourth Proportional to 20,654.40, 31,001.94 and 14,737.80

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Solution

The fourth proportional to 20,654.40, 31,001.94 and 14,737.80 is: 22,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.40 : 31,001.94 = 14,737.80 : x
  2. Step 2: Convert to fraction form
    20,654.40/31,001.94 = 14,737.80/x
  3. Step 3: Cross multiply
    20,654.40x = 31,001.94 × 14,737.80
  4. Step 4: Simplify right side
    20,654.40x = 456,900,391.33
  5. Step 5: Solve for x
    x = 456,900,391.33/20,654.40
  6. Step 6: Final answer
    x = 22,121.21

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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.