Home / 31,839.38-47,756.30-10,778.97

Finding the Fourth Proportional to 31,839.38, 47,756.30 and 10,778.97

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Solution

The fourth proportional to 31,839.38, 47,756.30 and 10,778.97 is: 16,167.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,839.38 : 47,756.30 = 10,778.97 : x
  2. Step 2: Convert to fraction form
    31,839.38/47,756.30 = 10,778.97/x
  3. Step 3: Cross multiply
    31,839.38x = 47,756.30 × 10,778.97
  4. Step 4: Simplify right side
    31,839.38x = 514,763,725.01
  5. Step 5: Solve for x
    x = 514,763,725.01/31,839.38
  6. Step 6: Final answer
    x = 16,167.52

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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.