Home / 27,399.88-41,106.91-7,678.61

Finding the Fourth Proportional to 27,399.88, 41,106.91 and 7,678.61

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Solution

The fourth proportional to 27,399.88, 41,106.91 and 7,678.61 is: 11,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,399.88 : 41,106.91 = 7,678.61 : x
  2. Step 2: Convert to fraction form
    27,399.88/41,106.91 = 7,678.61/x
  3. Step 3: Cross multiply
    27,399.88x = 41,106.91 × 7,678.61
  4. Step 4: Simplify right side
    27,399.88x = 315,643,930.20
  5. Step 5: Solve for x
    x = 315,643,930.20/27,399.88
  6. Step 6: Final answer
    x = 11,519.90

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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.