Home / 20,043.42-27,660.51-11,091.76

Finding the Fourth Proportional to 20,043.42, 27,660.51 and 11,091.76

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Solution

The fourth proportional to 20,043.42, 27,660.51 and 11,091.76 is: 15,306.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.42 : 27,660.51 = 11,091.76 : x
  2. Step 2: Convert to fraction form
    20,043.42/27,660.51 = 11,091.76/x
  3. Step 3: Cross multiply
    20,043.42x = 27,660.51 × 11,091.76
  4. Step 4: Simplify right side
    20,043.42x = 306,803,778.24
  5. Step 5: Solve for x
    x = 306,803,778.24/20,043.42
  6. Step 6: Final answer
    x = 15,306.95

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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.