Home / 20,263.50-27,963.09-11,310.75

Finding the Fourth Proportional to 20,263.50, 27,963.09 and 11,310.75

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Solution

The fourth proportional to 20,263.50, 27,963.09 and 11,310.75 is: 15,608.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.50 : 27,963.09 = 11,310.75 : x
  2. Step 2: Convert to fraction form
    20,263.50/27,963.09 = 11,310.75/x
  3. Step 3: Cross multiply
    20,263.50x = 27,963.09 × 11,310.75
  4. Step 4: Simplify right side
    20,263.50x = 316,283,520.22
  5. Step 5: Solve for x
    x = 316,283,520.22/20,263.50
  6. Step 6: Final answer
    x = 15,608.53

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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.