Home / 27,879.39-41,731.61-14,691.78

Finding the Fourth Proportional to 27,879.39, 41,731.61 and 14,691.78

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Solution

The fourth proportional to 27,879.39, 41,731.61 and 14,691.78 is: 21,991.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,879.39 : 41,731.61 = 14,691.78 : x
  2. Step 2: Convert to fraction form
    27,879.39/41,731.61 = 14,691.78/x
  3. Step 3: Cross multiply
    27,879.39x = 41,731.61 × 14,691.78
  4. Step 4: Simplify right side
    27,879.39x = 613,111,559.71
  5. Step 5: Solve for x
    x = 613,111,559.71/27,879.39
  6. Step 6: Final answer
    x = 21,991.57

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1.5x scale

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.