Home / 31,257.52-43,138.35-17,112.49

Finding the Fourth Proportional to 31,257.52, 43,138.35 and 17,112.49

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Solution

The fourth proportional to 31,257.52, 43,138.35 and 17,112.49 is: 23,616.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,257.52 : 43,138.35 = 17,112.49 : x
  2. Step 2: Convert to fraction form
    31,257.52/43,138.35 = 17,112.49/x
  3. Step 3: Cross multiply
    31,257.52x = 43,138.35 × 17,112.49
  4. Step 4: Simplify right side
    31,257.52x = 738,204,475.15
  5. Step 5: Solve for x
    x = 738,204,475.15/31,257.52
  6. Step 6: Final answer
    x = 23,616.86

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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.