Home / 20,262.30-27,963.39-11,311.56

Finding the Fourth Proportional to 20,262.30, 27,963.39 and 11,311.56

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Solution

The fourth proportional to 20,262.30, 27,963.39 and 11,311.56 is: 15,610.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.30 : 27,963.39 = 11,311.56 : x
  2. Step 2: Convert to fraction form
    20,262.30/27,963.39 = 11,311.56/x
  3. Step 3: Cross multiply
    20,262.30x = 27,963.39 × 11,311.56
  4. Step 4: Simplify right side
    20,262.30x = 316,309,563.79
  5. Step 5: Solve for x
    x = 316,309,563.79/20,262.30
  6. Step 6: Final answer
    x = 15,610.74

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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.