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Finding the Fourth Proportional to 36,874.53, 55,311.89 and 13,488.21

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Solution

The fourth proportional to 36,874.53, 55,311.89 and 13,488.21 is: 20,232.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,874.53 : 55,311.89 = 13,488.21 : x
  2. Step 2: Convert to fraction form
    36,874.53/55,311.89 = 13,488.21/x
  3. Step 3: Cross multiply
    36,874.53x = 55,311.89 × 13,488.21
  4. Step 4: Simplify right side
    36,874.53x = 746,058,320.38
  5. Step 5: Solve for x
    x = 746,058,320.38/36,874.53
  6. Step 6: Final answer
    x = 20,232.35

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1.5x scale

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.