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Finding the Fourth Proportional to 20,034.68, 30,042.90 and 10,672.29

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Solution

The fourth proportional to 20,034.68, 30,042.90 and 10,672.29 is: 16,003.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,034.68 : 30,042.90 = 10,672.29 : x
  2. Step 2: Convert to fraction form
    20,034.68/30,042.90 = 10,672.29/x
  3. Step 3: Cross multiply
    20,034.68x = 30,042.90 × 10,672.29
  4. Step 4: Simplify right side
    20,034.68x = 320,626,541.24
  5. Step 5: Solve for x
    x = 320,626,541.24/20,034.68
  6. Step 6: Final answer
    x = 16,003.58

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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.