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Finding the Fourth Proportional to 38,234.57, 52,764.11 and 21,239.87

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Solution

The fourth proportional to 38,234.57, 52,764.11 and 21,239.87 is: 29,311.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,234.57 : 52,764.11 = 21,239.87 : x
  2. Step 2: Convert to fraction form
    38,234.57/52,764.11 = 21,239.87/x
  3. Step 3: Cross multiply
    38,234.57x = 52,764.11 × 21,239.87
  4. Step 4: Simplify right side
    38,234.57x = 1,120,702,843.49
  5. Step 5: Solve for x
    x = 1,120,702,843.49/38,234.57
  6. Step 6: Final answer
    x = 29,311.25

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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.