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Finding the Fourth Proportional to 30,644.39, 45,943.22 and 15,843.87

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Solution

The fourth proportional to 30,644.39, 45,943.22 and 15,843.87 is: 23,753.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,644.39 : 45,943.22 = 15,843.87 : x
  2. Step 2: Convert to fraction form
    30,644.39/45,943.22 = 15,843.87/x
  3. Step 3: Cross multiply
    30,644.39x = 45,943.22 × 15,843.87
  4. Step 4: Simplify right side
    30,644.39x = 727,918,444.67
  5. Step 5: Solve for x
    x = 727,918,444.67/30,644.39
  6. Step 6: Final answer
    x = 23,753.72

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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.