Home / 31,600.75-43,608.27-18,171.71

Finding the Fourth Proportional to 31,600.75, 43,608.27 and 18,171.71

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Solution

The fourth proportional to 31,600.75, 43,608.27 and 18,171.71 is: 25,076.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,600.75 : 43,608.27 = 18,171.71 : x
  2. Step 2: Convert to fraction form
    31,600.75/43,608.27 = 18,171.71/x
  3. Step 3: Cross multiply
    31,600.75x = 43,608.27 × 18,171.71
  4. Step 4: Simplify right side
    31,600.75x = 792,436,849.68
  5. Step 5: Solve for x
    x = 792,436,849.68/31,600.75
  6. Step 6: Final answer
    x = 25,076.52

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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.