Home / 31,449.62-43,400.47-18,874.38

Finding the Fourth Proportional to 31,449.62, 43,400.47 and 18,874.38

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Solution

The fourth proportional to 31,449.62, 43,400.47 and 18,874.38 is: 26,046.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,449.62 : 43,400.47 = 18,874.38 : x
  2. Step 2: Convert to fraction form
    31,449.62/43,400.47 = 18,874.38/x
  3. Step 3: Cross multiply
    31,449.62x = 43,400.47 × 18,874.38
  4. Step 4: Simplify right side
    31,449.62x = 819,156,962.96
  5. Step 5: Solve for x
    x = 819,156,962.96/31,449.62
  6. Step 6: Final answer
    x = 26,046.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.