Home / 20,737.22-31,105.85-5,154.84

Finding the Fourth Proportional to 20,737.22, 31,105.85 and 5,154.84

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Solution

The fourth proportional to 20,737.22, 31,105.85 and 5,154.84 is: 7,732.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.22 : 31,105.85 = 5,154.84 : x
  2. Step 2: Convert to fraction form
    20,737.22/31,105.85 = 5,154.84/x
  3. Step 3: Cross multiply
    20,737.22x = 31,105.85 × 5,154.84
  4. Step 4: Simplify right side
    20,737.22x = 160,345,654.04
  5. Step 5: Solve for x
    x = 160,345,654.04/20,737.22
  6. Step 6: Final answer
    x = 7,732.27

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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.