Home / 31,439.12-43,385.12-17,291.97

Finding the Fourth Proportional to 31,439.12, 43,385.12 and 17,291.97

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Solution

The fourth proportional to 31,439.12, 43,385.12 and 17,291.97 is: 23,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439.12 : 43,385.12 = 17,291.97 : x
  2. Step 2: Convert to fraction form
    31,439.12/43,385.12 = 17,291.97/x
  3. Step 3: Cross multiply
    31,439.12x = 43,385.12 × 17,291.97
  4. Step 4: Simplify right side
    31,439.12x = 750,214,215.49
  5. Step 5: Solve for x
    x = 750,214,215.49/31,439.12
  6. Step 6: Final answer
    x = 23,862.45

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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.