Home / 31,451.71-43,404.39-18,025.53

Finding the Fourth Proportional to 31,451.71, 43,404.39 and 18,025.53

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Solution

The fourth proportional to 31,451.71, 43,404.39 and 18,025.53 is: 24,875.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.71 : 43,404.39 = 18,025.53 : x
  2. Step 2: Convert to fraction form
    31,451.71/43,404.39 = 18,025.53/x
  3. Step 3: Cross multiply
    31,451.71x = 43,404.39 × 18,025.53
  4. Step 4: Simplify right side
    31,451.71x = 782,387,265.12
  5. Step 5: Solve for x
    x = 782,387,265.12/31,451.71
  6. Step 6: Final answer
    x = 24,875.83

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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.