Home / 17,147.80-25,721.70-5,462.20

Finding the Fourth Proportional to 17,147.80, 25,721.70 and 5,462.20

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Solution

The fourth proportional to 17,147.80, 25,721.70 and 5,462.20 is: 8,193.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,147.80 : 25,721.70 = 5,462.20 : x
  2. Step 2: Convert to fraction form
    17,147.80/25,721.70 = 5,462.20/x
  3. Step 3: Cross multiply
    17,147.80x = 25,721.70 × 5,462.20
  4. Step 4: Simplify right side
    17,147.80x = 140,497,069.74
  5. Step 5: Solve for x
    x = 140,497,069.74/17,147.80
  6. Step 6: Final answer
    x = 8,193.30

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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.