Home / 41,982.40-62,974.14-12,400.66

Finding the Fourth Proportional to 41,982.40, 62,974.14 and 12,400.66

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Solution

The fourth proportional to 41,982.40, 62,974.14 and 12,400.66 is: 18,601.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,982.40 : 62,974.14 = 12,400.66 : x
  2. Step 2: Convert to fraction form
    41,982.40/62,974.14 = 12,400.66/x
  3. Step 3: Cross multiply
    41,982.40x = 62,974.14 × 12,400.66
  4. Step 4: Simplify right side
    41,982.40x = 780,920,898.93
  5. Step 5: Solve for x
    x = 780,920,898.93/41,982.40
  6. Step 6: Final answer
    x = 18,601.15

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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.