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Finding the Fourth Proportional to 36,898.68, 50,920.92 and 20,131.68

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Solution

The fourth proportional to 36,898.68, 50,920.92 and 20,131.68 is: 27,782.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,898.68 : 50,920.92 = 20,131.68 : x
  2. Step 2: Convert to fraction form
    36,898.68/50,920.92 = 20,131.68/x
  3. Step 3: Cross multiply
    36,898.68x = 50,920.92 × 20,131.68
  4. Step 4: Simplify right side
    36,898.68x = 1,025,123,666.75
  5. Step 5: Solve for x
    x = 1,025,123,666.75/36,898.68
  6. Step 6: Final answer
    x = 27,782.12

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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.