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Finding the Fourth Proportional to 40,330.80, 60,474.60 and 16,930.80

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Solution

The fourth proportional to 40,330.80, 60,474.60 and 16,930.80 is: 25,387.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,330.80 : 60,474.60 = 16,930.80 : x
  2. Step 2: Convert to fraction form
    40,330.80/60,474.60 = 16,930.80/x
  3. Step 3: Cross multiply
    40,330.80x = 60,474.60 × 16,930.80
  4. Step 4: Simplify right side
    40,330.80x = 1,023,883,357.68
  5. Step 5: Solve for x
    x = 1,023,883,357.68/40,330.80
  6. Step 6: Final answer
    x = 25,387.13

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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.