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Finding the Fourth Proportional to 27,253.13, 40,879.69 and 8,785.13

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Solution

The fourth proportional to 27,253.13, 40,879.69 and 8,785.13 is: 13,177.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,253.13 : 40,879.69 = 8,785.13 : x
  2. Step 2: Convert to fraction form
    27,253.13/40,879.69 = 8,785.13/x
  3. Step 3: Cross multiply
    27,253.13x = 40,879.69 × 8,785.13
  4. Step 4: Simplify right side
    27,253.13x = 359,133,164.65
  5. Step 5: Solve for x
    x = 359,133,164.65/27,253.13
  6. Step 6: Final answer
    x = 13,177.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.