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Finding the Fourth Proportional to 33,114, 49,658.76 and 10,920.90

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Solution

The fourth proportional to 33,114, 49,658.76 and 10,920.90 is: 16,377.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,114 : 49,658.76 = 10,920.90 : x
  2. Step 2: Convert to fraction form
    33,114/49,658.76 = 10,920.90/x
  3. Step 3: Cross multiply
    33,114x = 49,658.76 × 10,920.90
  4. Step 4: Simplify right side
    33,114x = 542,318,352.08
  5. Step 5: Solve for x
    x = 542,318,352.08/33,114
  6. Step 6: Final answer
    x = 16,377.31

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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.