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Finding the Fourth Proportional to 36,251.52, 50,027 and 20,121.30

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Solution

The fourth proportional to 36,251.52, 50,027 and 20,121.30 is: 27,767.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,251.52 : 50,027 = 20,121.30 : x
  2. Step 2: Convert to fraction form
    36,251.52/50,027 = 20,121.30/x
  3. Step 3: Cross multiply
    36,251.52x = 50,027 × 20,121.30
  4. Step 4: Simplify right side
    36,251.52x = 1,006,608,275.10
  5. Step 5: Solve for x
    x = 1,006,608,275.10/36,251.52
  6. Step 6: Final answer
    x = 27,767.34

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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.