Home / 22,279.06-30,744.21-13,321.27

Finding the Fourth Proportional to 22,279.06, 30,744.21 and 13,321.27

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Solution

The fourth proportional to 22,279.06, 30,744.21 and 13,321.27 is: 18,382.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,279.06 : 30,744.21 = 13,321.27 : x
  2. Step 2: Convert to fraction form
    22,279.06/30,744.21 = 13,321.27/x
  3. Step 3: Cross multiply
    22,279.06x = 30,744.21 × 13,321.27
  4. Step 4: Simplify right side
    22,279.06x = 409,551,922.35
  5. Step 5: Solve for x
    x = 409,551,922.35/22,279.06
  6. Step 6: Final answer
    x = 18,382.82

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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.