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Finding the Fourth Proportional to 34,654.92, 51,874.83 and 18,820.68

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Solution

The fourth proportional to 34,654.92, 51,874.83 and 18,820.68 is: 28,172.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,654.92 : 51,874.83 = 18,820.68 : x
  2. Step 2: Convert to fraction form
    34,654.92/51,874.83 = 18,820.68/x
  3. Step 3: Cross multiply
    34,654.92x = 51,874.83 × 18,820.68
  4. Step 4: Simplify right side
    34,654.92x = 976,319,575.48
  5. Step 5: Solve for x
    x = 976,319,575.48/34,654.92
  6. Step 6: Final answer
    x = 28,172.61

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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.