Home / 20,043.72-27,660.75-11,091.82

Finding the Fourth Proportional to 20,043.72, 27,660.75 and 11,091.82

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Solution

The fourth proportional to 20,043.72, 27,660.75 and 11,091.82 is: 15,306.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.72 : 27,660.75 = 11,091.82 : x
  2. Step 2: Convert to fraction form
    20,043.72/27,660.75 = 11,091.82/x
  3. Step 3: Cross multiply
    20,043.72x = 27,660.75 × 11,091.82
  4. Step 4: Simplify right side
    20,043.72x = 306,808,060.07
  5. Step 5: Solve for x
    x = 306,808,060.07/20,043.72
  6. Step 6: Final answer
    x = 15,306.94

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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.