Home / 39,913.38-59,879.78-12,211.38

Finding the Fourth Proportional to 39,913.38, 59,879.78 and 12,211.38

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Solution

The fourth proportional to 39,913.38, 59,879.78 and 12,211.38 is: 18,320.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,913.38 : 59,879.78 = 12,211.38 : x
  2. Step 2: Convert to fraction form
    39,913.38/59,879.78 = 12,211.38/x
  3. Step 3: Cross multiply
    39,913.38x = 59,879.78 × 12,211.38
  4. Step 4: Simplify right side
    39,913.38x = 731,214,747.90
  5. Step 5: Solve for x
    x = 731,214,747.90/39,913.38
  6. Step 6: Final answer
    x = 18,320.04

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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.