Home / 27,531.20-41,296.80-9,998.78

Finding the Fourth Proportional to 27,531.20, 41,296.80 and 9,998.78

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Solution

The fourth proportional to 27,531.20, 41,296.80 and 9,998.78 is: 14,998.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,531.20 : 41,296.80 = 9,998.78 : x
  2. Step 2: Convert to fraction form
    27,531.20/41,296.80 = 9,998.78/x
  3. Step 3: Cross multiply
    27,531.20x = 41,296.80 × 9,998.78
  4. Step 4: Simplify right side
    27,531.20x = 412,917,617.90
  5. Step 5: Solve for x
    x = 412,917,617.90/27,531.20
  6. Step 6: Final answer
    x = 14,998.17

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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.