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Finding the Fourth Proportional to 20,031.58, 30,049.42 and 7,562.10

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Solution

The fourth proportional to 20,031.58, 30,049.42 and 7,562.10 is: 11,343.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.58 : 30,049.42 = 7,562.10 : x
  2. Step 2: Convert to fraction form
    20,031.58/30,049.42 = 7,562.10/x
  3. Step 3: Cross multiply
    20,031.58x = 30,049.42 × 7,562.10
  4. Step 4: Simplify right side
    20,031.58x = 227,236,718.98
  5. Step 5: Solve for x
    x = 227,236,718.98/20,031.58
  6. Step 6: Final answer
    x = 11,343.92

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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.