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Finding the Fourth Proportional to 36,890.91, 50,909.51 and 20,123.91

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Solution

The fourth proportional to 36,890.91, 50,909.51 and 20,123.91 is: 27,771.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,890.91 : 50,909.51 = 20,123.91 : x
  2. Step 2: Convert to fraction form
    36,890.91/50,909.51 = 20,123.91/x
  3. Step 3: Cross multiply
    36,890.91x = 50,909.51 × 20,123.91
  4. Step 4: Simplify right side
    36,890.91x = 1,024,498,296.76
  5. Step 5: Solve for x
    x = 1,024,498,296.76/36,890.91
  6. Step 6: Final answer
    x = 27,771.02

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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.