Home / 25,469.10-38,185.20-17,128.44

Finding the Fourth Proportional to 25,469.10, 38,185.20 and 17,128.44

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Solution

The fourth proportional to 25,469.10, 38,185.20 and 17,128.44 is: 25,680.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,469.10 : 38,185.20 = 17,128.44 : x
  2. Step 2: Convert to fraction form
    25,469.10/38,185.20 = 17,128.44/x
  3. Step 3: Cross multiply
    25,469.10x = 38,185.20 × 17,128.44
  4. Step 4: Simplify right side
    25,469.10x = 654,052,907.09
  5. Step 5: Solve for x
    x = 654,052,907.09/25,469.10
  6. Step 6: Final answer
    x = 25,680.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.