Home / 28,957.42-43,508.67-18,431.92

Finding the Fourth Proportional to 28,957.42, 43,508.67 and 18,431.92

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Solution

The fourth proportional to 28,957.42, 43,508.67 and 18,431.92 is: 27,694.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.42 : 43,508.67 = 18,431.92 : x
  2. Step 2: Convert to fraction form
    28,957.42/43,508.67 = 18,431.92/x
  3. Step 3: Cross multiply
    28,957.42x = 43,508.67 × 18,431.92
  4. Step 4: Simplify right side
    28,957.42x = 801,948,324.75
  5. Step 5: Solve for x
    x = 801,948,324.75/28,957.42
  6. Step 6: Final answer
    x = 27,694.05

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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.