Home / 31,512.86-43,489.05-18,084.68

Finding the Fourth Proportional to 31,512.86, 43,489.05 and 18,084.68

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Solution

The fourth proportional to 31,512.86, 43,489.05 and 18,084.68 is: 24,957.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.86 : 43,489.05 = 18,084.68 : x
  2. Step 2: Convert to fraction form
    31,512.86/43,489.05 = 18,084.68/x
  3. Step 3: Cross multiply
    31,512.86x = 43,489.05 × 18,084.68
  4. Step 4: Simplify right side
    31,512.86x = 786,485,552.75
  5. Step 5: Solve for x
    x = 786,485,552.75/31,512.86
  6. Step 6: Final answer
    x = 24,957.61

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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.