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Finding the Fourth Proportional to 20,397.52, 30,560.02 and 8,525.15

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Solution

The fourth proportional to 20,397.52, 30,560.02 and 8,525.15 is: 12,772.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,397.52 : 30,560.02 = 8,525.15 : x
  2. Step 2: Convert to fraction form
    20,397.52/30,560.02 = 8,525.15/x
  3. Step 3: Cross multiply
    20,397.52x = 30,560.02 × 8,525.15
  4. Step 4: Simplify right side
    20,397.52x = 260,528,694.99
  5. Step 5: Solve for x
    x = 260,528,694.99/20,397.52
  6. Step 6: Final answer
    x = 12,772.57

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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.