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Finding the Fourth Proportional to 20,410.52, 30,612.10 and 5,617.52

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Solution

The fourth proportional to 20,410.52, 30,612.10 and 5,617.52 is: 8,425.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.52 : 30,612.10 = 5,617.52 : x
  2. Step 2: Convert to fraction form
    20,410.52/30,612.10 = 5,617.52/x
  3. Step 3: Cross multiply
    20,410.52x = 30,612.10 × 5,617.52
  4. Step 4: Simplify right side
    20,410.52x = 171,964,083.99
  5. Step 5: Solve for x
    x = 171,964,083.99/20,410.52
  6. Step 6: Final answer
    x = 8,425.27

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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.