Home / 18,540.20-27,801.99-11,047.29

Finding the Fourth Proportional to 18,540.20, 27,801.99 and 11,047.29

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Solution

The fourth proportional to 18,540.20, 27,801.99 and 11,047.29 is: 16,565.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.20 : 27,801.99 = 11,047.29 : x
  2. Step 2: Convert to fraction form
    18,540.20/27,801.99 = 11,047.29/x
  3. Step 3: Cross multiply
    18,540.20x = 27,801.99 × 11,047.29
  4. Step 4: Simplify right side
    18,540.20x = 307,136,725.55
  5. Step 5: Solve for x
    x = 307,136,725.55/18,540.20
  6. Step 6: Final answer
    x = 16,565.99

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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.