Home / 22,708.20-31,339.26-13,279.80

Finding the Fourth Proportional to 22,708.20, 31,339.26 and 13,279.80

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Solution

The fourth proportional to 22,708.20, 31,339.26 and 13,279.80 is: 18,327.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,708.20 : 31,339.26 = 13,279.80 : x
  2. Step 2: Convert to fraction form
    22,708.20/31,339.26 = 13,279.80/x
  3. Step 3: Cross multiply
    22,708.20x = 31,339.26 × 13,279.80
  4. Step 4: Simplify right side
    22,708.20x = 416,179,104.95
  5. Step 5: Solve for x
    x = 416,179,104.95/22,708.20
  6. Step 6: Final answer
    x = 18,327.26

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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.