Home / 31,279.70-43,166.61-17,132.55

Finding the Fourth Proportional to 31,279.70, 43,166.61 and 17,132.55

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Solution

The fourth proportional to 31,279.70, 43,166.61 and 17,132.55 is: 23,643.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,279.70 : 43,166.61 = 17,132.55 : x
  2. Step 2: Convert to fraction form
    31,279.70/43,166.61 = 17,132.55/x
  3. Step 3: Cross multiply
    31,279.70x = 43,166.61 × 17,132.55
  4. Step 4: Simplify right side
    31,279.70x = 739,554,104.16
  5. Step 5: Solve for x
    x = 739,554,104.16/31,279.70
  6. Step 6: Final answer
    x = 23,643.26

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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.