Home / 27,178.22-40,781.25-12,385.24

Finding the Fourth Proportional to 27,178.22, 40,781.25 and 12,385.24

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Solution

The fourth proportional to 27,178.22, 40,781.25 and 12,385.24 is: 18,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,178.22 : 40,781.25 = 12,385.24 : x
  2. Step 2: Convert to fraction form
    27,178.22/40,781.25 = 12,385.24/x
  3. Step 3: Cross multiply
    27,178.22x = 40,781.25 × 12,385.24
  4. Step 4: Simplify right side
    27,178.22x = 505,085,466.80
  5. Step 5: Solve for x
    x = 505,085,466.80/27,178.22
  6. Step 6: Final answer
    x = 18,584.20

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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.