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Finding the Fourth Proportional to 34,640.52, 51,947.96 and 12,447.92

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Solution

The fourth proportional to 34,640.52, 51,947.96 and 12,447.92 is: 18,667.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,640.52 : 51,947.96 = 12,447.92 : x
  2. Step 2: Convert to fraction form
    34,640.52/51,947.96 = 12,447.92/x
  3. Step 3: Cross multiply
    34,640.52x = 51,947.96 × 12,447.92
  4. Step 4: Simplify right side
    34,640.52x = 646,644,050.24
  5. Step 5: Solve for x
    x = 646,644,050.24/34,640.52
  6. Step 6: Final answer
    x = 18,667.27

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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.