Home / 27,857.29-41,781.82-8,130.55

Finding the Fourth Proportional to 27,857.29, 41,781.82 and 8,130.55

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Solution

The fourth proportional to 27,857.29, 41,781.82 and 8,130.55 is: 12,194.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.29 : 41,781.82 = 8,130.55 : x
  2. Step 2: Convert to fraction form
    27,857.29/41,781.82 = 8,130.55/x
  3. Step 3: Cross multiply
    27,857.29x = 41,781.82 × 8,130.55
  4. Step 4: Simplify right side
    27,857.29x = 339,709,135.95
  5. Step 5: Solve for x
    x = 339,709,135.95/27,857.29
  6. Step 6: Final answer
    x = 12,194.62

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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.