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Finding the Fourth Proportional to 20,344.47, 30,516.47 and 7,193.76

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Solution

The fourth proportional to 20,344.47, 30,516.47 and 7,193.76 is: 10,790.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.47 : 30,516.47 = 7,193.76 : x
  2. Step 2: Convert to fraction form
    20,344.47/30,516.47 = 7,193.76/x
  3. Step 3: Cross multiply
    20,344.47x = 30,516.47 × 7,193.76
  4. Step 4: Simplify right side
    20,344.47x = 219,528,229.69
  5. Step 5: Solve for x
    x = 219,528,229.69/20,344.47
  6. Step 6: Final answer
    x = 10,790.56

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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.