Home / 27,857.22-41,786.82-9,137.70

Finding the Fourth Proportional to 27,857.22, 41,786.82 and 9,137.70

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Solution

The fourth proportional to 27,857.22, 41,786.82 and 9,137.70 is: 13,706.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.22 : 41,786.82 = 9,137.70 : x
  2. Step 2: Convert to fraction form
    27,857.22/41,786.82 = 9,137.70/x
  3. Step 3: Cross multiply
    27,857.22x = 41,786.82 × 9,137.70
  4. Step 4: Simplify right side
    27,857.22x = 381,835,425.11
  5. Step 5: Solve for x
    x = 381,835,425.11/27,857.22
  6. Step 6: Final answer
    x = 13,706.87

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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.