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Finding the Fourth Proportional to 33,337.80, 50,006.70 and 20,871.90

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Solution

The fourth proportional to 33,337.80, 50,006.70 and 20,871.90 is: 31,307.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,337.80 : 50,006.70 = 20,871.90 : x
  2. Step 2: Convert to fraction form
    33,337.80/50,006.70 = 20,871.90/x
  3. Step 3: Cross multiply
    33,337.80x = 50,006.70 × 20,871.90
  4. Step 4: Simplify right side
    33,337.80x = 1,043,734,841.73
  5. Step 5: Solve for x
    x = 1,043,734,841.73/33,337.80
  6. Step 6: Final answer
    x = 31,307.85

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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.