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Finding the Fourth Proportional to 22,387, 33,580.30 and 8,346.55

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Solution

The fourth proportional to 22,387, 33,580.30 and 8,346.55 is: 12,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,387 : 33,580.30 = 8,346.55 : x
  2. Step 2: Convert to fraction form
    22,387/33,580.30 = 8,346.55/x
  3. Step 3: Cross multiply
    22,387x = 33,580.30 × 8,346.55
  4. Step 4: Simplify right side
    22,387x = 280,279,652.97
  5. Step 5: Solve for x
    x = 280,279,652.97/22,387
  6. Step 6: Final answer
    x = 12,519.75

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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.