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Finding the Fourth Proportional to 40,398.80, 60,576.60 and 16,998.80

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Solution

The fourth proportional to 40,398.80, 60,576.60 and 16,998.80 is: 25,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,398.80 : 60,576.60 = 16,998.80 : x
  2. Step 2: Convert to fraction form
    40,398.80/60,576.60 = 16,998.80/x
  3. Step 3: Cross multiply
    40,398.80x = 60,576.60 × 16,998.80
  4. Step 4: Simplify right side
    40,398.80x = 1,029,729,508.08
  5. Step 5: Solve for x
    x = 1,029,729,508.08/40,398.80
  6. Step 6: Final answer
    x = 25,489.11

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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.