Home / 18,540.64-27,869.28-16,105.78

Finding the Fourth Proportional to 18,540.64, 27,869.28 and 16,105.78

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Solution

The fourth proportional to 18,540.64, 27,869.28 and 16,105.78 is: 24,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.64 : 27,869.28 = 16,105.78 : x
  2. Step 2: Convert to fraction form
    18,540.64/27,869.28 = 16,105.78/x
  3. Step 3: Cross multiply
    18,540.64x = 27,869.28 × 16,105.78
  4. Step 4: Simplify right side
    18,540.64x = 448,856,492.44
  5. Step 5: Solve for x
    x = 448,856,492.44/18,540.64
  6. Step 6: Final answer
    x = 24,209.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.