Home / 31,481.11-43,434.19-17,866.97

Finding the Fourth Proportional to 31,481.11, 43,434.19 and 17,866.97

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Solution

The fourth proportional to 31,481.11, 43,434.19 and 17,866.97 is: 24,650.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.11 : 43,434.19 = 17,866.97 : x
  2. Step 2: Convert to fraction form
    31,481.11/43,434.19 = 17,866.97/x
  3. Step 3: Cross multiply
    31,481.11x = 43,434.19 × 17,866.97
  4. Step 4: Simplify right side
    31,481.11x = 776,037,369.70
  5. Step 5: Solve for x
    x = 776,037,369.70/31,481.11
  6. Step 6: Final answer
    x = 24,650.89

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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.