Home / 20,737.50-31,106.04-9,637.98

Finding the Fourth Proportional to 20,737.50, 31,106.04 and 9,637.98

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Solution

The fourth proportional to 20,737.50, 31,106.04 and 9,637.98 is: 14,456.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.50 : 31,106.04 = 9,637.98 : x
  2. Step 2: Convert to fraction form
    20,737.50/31,106.04 = 9,637.98/x
  3. Step 3: Cross multiply
    20,737.50x = 31,106.04 × 9,637.98
  4. Step 4: Simplify right side
    20,737.50x = 299,799,391.40
  5. Step 5: Solve for x
    x = 299,799,391.40/20,737.50
  6. Step 6: Final answer
    x = 14,456.87

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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.