Home / 41,131.28-61,687.20-18,930.80

Finding the Fourth Proportional to 41,131.28, 61,687.20 and 18,930.80

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Solution

The fourth proportional to 41,131.28, 61,687.20 and 18,930.80 is: 28,391.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,131.28 : 61,687.20 = 18,930.80 : x
  2. Step 2: Convert to fraction form
    41,131.28/61,687.20 = 18,930.80/x
  3. Step 3: Cross multiply
    41,131.28x = 61,687.20 × 18,930.80
  4. Step 4: Simplify right side
    41,131.28x = 1,167,788,045.76
  5. Step 5: Solve for x
    x = 1,167,788,045.76/41,131.28
  6. Step 6: Final answer
    x = 28,391.73

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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.