Home / 19,879.11-27,433.17-10,926.61

Finding the Fourth Proportional to 19,879.11, 27,433.17 and 10,926.61

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Solution

The fourth proportional to 19,879.11, 27,433.17 and 10,926.61 is: 15,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.11 : 27,433.17 = 10,926.61 : x
  2. Step 2: Convert to fraction form
    19,879.11/27,433.17 = 10,926.61/x
  3. Step 3: Cross multiply
    19,879.11x = 27,433.17 × 10,926.61
  4. Step 4: Simplify right side
    19,879.11x = 299,751,549.65
  5. Step 5: Solve for x
    x = 299,751,549.65/19,879.11
  6. Step 6: Final answer
    x = 15,078.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.