Home / 20,043.49-27,660.07-11,091.61

Finding the Fourth Proportional to 20,043.49, 27,660.07 and 11,091.61

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Solution

The fourth proportional to 20,043.49, 27,660.07 and 11,091.61 is: 15,306.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.49 : 27,660.07 = 11,091.61 : x
  2. Step 2: Convert to fraction form
    20,043.49/27,660.07 = 11,091.61/x
  3. Step 3: Cross multiply
    20,043.49x = 27,660.07 × 11,091.61
  4. Step 4: Simplify right side
    20,043.49x = 306,794,515.25
  5. Step 5: Solve for x
    x = 306,794,515.25/20,043.49
  6. Step 6: Final answer
    x = 15,306.44

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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.