Home / 31,610.50-47,421.89-9,423.38

Finding the Fourth Proportional to 31,610.50, 47,421.89 and 9,423.38

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Solution

The fourth proportional to 31,610.50, 47,421.89 and 9,423.38 is: 14,136.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,610.50 : 47,421.89 = 9,423.38 : x
  2. Step 2: Convert to fraction form
    31,610.50/47,421.89 = 9,423.38/x
  3. Step 3: Cross multiply
    31,610.50x = 47,421.89 × 9,423.38
  4. Step 4: Simplify right side
    31,610.50x = 446,874,631.90
  5. Step 5: Solve for x
    x = 446,874,631.90/31,610.50
  6. Step 6: Final answer
    x = 14,136.91

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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.