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Finding the Fourth Proportional to 36,890.76, 50,909.13 and 20,123.76

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Solution

The fourth proportional to 36,890.76, 50,909.13 and 20,123.76 is: 27,770.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,890.76 : 50,909.13 = 20,123.76 : x
  2. Step 2: Convert to fraction form
    36,890.76/50,909.13 = 20,123.76/x
  3. Step 3: Cross multiply
    36,890.76x = 50,909.13 × 20,123.76
  4. Step 4: Simplify right side
    36,890.76x = 1,024,483,113.93
  5. Step 5: Solve for x
    x = 1,024,483,113.93/36,890.76
  6. Step 6: Final answer
    x = 27,770.72

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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.