Home / 31,489.30-43,454.19-17,342.11

Finding the Fourth Proportional to 31,489.30, 43,454.19 and 17,342.11

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Solution

The fourth proportional to 31,489.30, 43,454.19 and 17,342.11 is: 23,931.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,489.30 : 43,454.19 = 17,342.11 : x
  2. Step 2: Convert to fraction form
    31,489.30/43,454.19 = 17,342.11/x
  3. Step 3: Cross multiply
    31,489.30x = 43,454.19 × 17,342.11
  4. Step 4: Simplify right side
    31,489.30x = 753,587,342.94
  5. Step 5: Solve for x
    x = 753,587,342.94/31,489.30
  6. Step 6: Final answer
    x = 23,931.54

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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.