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Finding the Fourth Proportional to 20,034.87, 30,043.17 and 10,672.49

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Solution

The fourth proportional to 20,034.87, 30,043.17 and 10,672.49 is: 16,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,034.87 : 30,043.17 = 10,672.49 : x
  2. Step 2: Convert to fraction form
    20,034.87/30,043.17 = 10,672.49/x
  3. Step 3: Cross multiply
    20,034.87x = 30,043.17 × 10,672.49
  4. Step 4: Simplify right side
    20,034.87x = 320,635,281.18
  5. Step 5: Solve for x
    x = 320,635,281.18/20,034.87
  6. Step 6: Final answer
    x = 16,003.86

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1.5x scale

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.