Home / 17,220.20-23,757.76-11,255.30

Finding the Fourth Proportional to 17,220.20, 23,757.76 and 11,255.30

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Solution

The fourth proportional to 17,220.20, 23,757.76 and 11,255.30 is: 15,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.20 : 23,757.76 = 11,255.30 : x
  2. Step 2: Convert to fraction form
    17,220.20/23,757.76 = 11,255.30/x
  3. Step 3: Cross multiply
    17,220.20x = 23,757.76 × 11,255.30
  4. Step 4: Simplify right side
    17,220.20x = 267,400,747.38
  5. Step 5: Solve for x
    x = 267,400,747.38/17,220.20
  6. Step 6: Final answer
    x = 15,528.32

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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.