Home / 31,279.14-43,166.25-17,132.76

Finding the Fourth Proportional to 31,279.14, 43,166.25 and 17,132.76

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Solution

The fourth proportional to 31,279.14, 43,166.25 and 17,132.76 is: 23,643.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,279.14 : 43,166.25 = 17,132.76 : x
  2. Step 2: Convert to fraction form
    31,279.14/43,166.25 = 17,132.76/x
  3. Step 3: Cross multiply
    31,279.14x = 43,166.25 × 17,132.76
  4. Step 4: Simplify right side
    31,279.14x = 739,557,001.35
  5. Step 5: Solve for x
    x = 739,557,001.35/31,279.14
  6. Step 6: Final answer
    x = 23,643.78

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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.