Home / 41,920.78-62,874.33-12,331.69

Finding the Fourth Proportional to 41,920.78, 62,874.33 and 12,331.69

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Solution

The fourth proportional to 41,920.78, 62,874.33 and 12,331.69 is: 18,495.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,920.78 : 62,874.33 = 12,331.69 : x
  2. Step 2: Convert to fraction form
    41,920.78/62,874.33 = 12,331.69/x
  3. Step 3: Cross multiply
    41,920.78x = 62,874.33 × 12,331.69
  4. Step 4: Simplify right side
    41,920.78x = 775,346,621.68
  5. Step 5: Solve for x
    x = 775,346,621.68/41,920.78
  6. Step 6: Final answer
    x = 18,495.52

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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.