Home / 40,982.80-61,474.20-28,516.90

Finding the Fourth Proportional to 40,982.80, 61,474.20 and 28,516.90

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Solution

The fourth proportional to 40,982.80, 61,474.20 and 28,516.90 is: 42,775.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,982.80 : 61,474.20 = 28,516.90 : x
  2. Step 2: Convert to fraction form
    40,982.80/61,474.20 = 28,516.90/x
  3. Step 3: Cross multiply
    40,982.80x = 61,474.20 × 28,516.90
  4. Step 4: Simplify right side
    40,982.80x = 1,753,053,613.98
  5. Step 5: Solve for x
    x = 1,753,053,613.98/40,982.80
  6. Step 6: Final answer
    x = 42,775.35

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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.