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Finding the Fourth Proportional to 34,471.94, 51,695.15 and 12,279.42

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Solution

The fourth proportional to 34,471.94, 51,695.15 and 12,279.42 is: 18,414.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,471.94 : 51,695.15 = 12,279.42 : x
  2. Step 2: Convert to fraction form
    34,471.94/51,695.15 = 12,279.42/x
  3. Step 3: Cross multiply
    34,471.94x = 51,695.15 × 12,279.42
  4. Step 4: Simplify right side
    34,471.94x = 634,786,397.42
  5. Step 5: Solve for x
    x = 634,786,397.42/34,471.94
  6. Step 6: Final answer
    x = 18,414.59

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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.