Home / 22,175.28-30,601.13-13,218.17

Finding the Fourth Proportional to 22,175.28, 30,601.13 and 13,218.17

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Solution

The fourth proportional to 22,175.28, 30,601.13 and 13,218.17 is: 18,240.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,175.28 : 30,601.13 = 13,218.17 : x
  2. Step 2: Convert to fraction form
    22,175.28/30,601.13 = 13,218.17/x
  3. Step 3: Cross multiply
    22,175.28x = 30,601.13 × 13,218.17
  4. Step 4: Simplify right side
    22,175.28x = 404,490,719.44
  5. Step 5: Solve for x
    x = 404,490,719.44/22,175.28
  6. Step 6: Final answer
    x = 18,240.61

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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.