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Finding the Fourth Proportional to 20,039.64, 30,062.20 and 8,350.13

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Solution

The fourth proportional to 20,039.64, 30,062.20 and 8,350.13 is: 12,526.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.64 : 30,062.20 = 8,350.13 : x
  2. Step 2: Convert to fraction form
    20,039.64/30,062.20 = 8,350.13/x
  3. Step 3: Cross multiply
    20,039.64x = 30,062.20 × 8,350.13
  4. Step 4: Simplify right side
    20,039.64x = 251,023,278.09
  5. Step 5: Solve for x
    x = 251,023,278.09/20,039.64
  6. Step 6: Final answer
    x = 12,526.34

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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.