Home / 20,263.55-27,963.23-11,311.88

Finding the Fourth Proportional to 20,263.55, 27,963.23 and 11,311.88

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Solution

The fourth proportional to 20,263.55, 27,963.23 and 11,311.88 is: 15,610.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.55 : 27,963.23 = 11,311.88 : x
  2. Step 2: Convert to fraction form
    20,263.55/27,963.23 = 11,311.88/x
  3. Step 3: Cross multiply
    20,263.55x = 27,963.23 × 11,311.88
  4. Step 4: Simplify right side
    20,263.55x = 316,316,505.80
  5. Step 5: Solve for x
    x = 316,316,505.80/20,263.55
  6. Step 6: Final answer
    x = 15,610.13

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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.