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Finding the Fourth Proportional to 37,311, 51,489.18 and 20,544

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Solution

The fourth proportional to 37,311, 51,489.18 and 20,544 is: 28,350.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,311 : 51,489.18 = 20,544 : x
  2. Step 2: Convert to fraction form
    37,311/51,489.18 = 20,544/x
  3. Step 3: Cross multiply
    37,311x = 51,489.18 × 20,544
  4. Step 4: Simplify right side
    37,311x = 1,057,793,713.92
  5. Step 5: Solve for x
    x = 1,057,793,713.92/37,311
  6. Step 6: Final answer
    x = 28,350.72

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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.