Home / 27,972.09-38,584.62-17,218.80

Finding the Fourth Proportional to 27,972.09, 38,584.62 and 17,218.80

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Solution

The fourth proportional to 27,972.09, 38,584.62 and 17,218.80 is: 23,751.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,972.09 : 38,584.62 = 17,218.80 : x
  2. Step 2: Convert to fraction form
    27,972.09/38,584.62 = 17,218.80/x
  3. Step 3: Cross multiply
    27,972.09x = 38,584.62 × 17,218.80
  4. Step 4: Simplify right side
    27,972.09x = 664,380,854.86
  5. Step 5: Solve for x
    x = 664,380,854.86/27,972.09
  6. Step 6: Final answer
    x = 23,751.56

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1.5x scale

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.