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Finding the Fourth Proportional to 36,890.88, 50,909.36 and 20,123.88

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Solution

The fourth proportional to 36,890.88, 50,909.36 and 20,123.88 is: 27,770.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,890.88 : 50,909.36 = 20,123.88 : x
  2. Step 2: Convert to fraction form
    36,890.88/50,909.36 = 20,123.88/x
  3. Step 3: Cross multiply
    36,890.88x = 50,909.36 × 20,123.88
  4. Step 4: Simplify right side
    36,890.88x = 1,024,493,750.90
  5. Step 5: Solve for x
    x = 1,024,493,750.90/36,890.88
  6. Step 6: Final answer
    x = 27,770.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.