Home / 31,778.47-43,856.38-18,350.29

Finding the Fourth Proportional to 31,778.47, 43,856.38 and 18,350.29

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Solution

The fourth proportional to 31,778.47, 43,856.38 and 18,350.29 is: 25,324.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.47 : 43,856.38 = 18,350.29 : x
  2. Step 2: Convert to fraction form
    31,778.47/43,856.38 = 18,350.29/x
  3. Step 3: Cross multiply
    31,778.47x = 43,856.38 × 18,350.29
  4. Step 4: Simplify right side
    31,778.47x = 804,777,291.35
  5. Step 5: Solve for x
    x = 804,777,291.35/31,778.47
  6. Step 6: Final answer
    x = 25,324.61

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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.