Home / 10,022.80-15,034.20-3,449.20

Finding the Fourth Proportional to 10,022.80, 15,034.20 and 3,449.20

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Solution

The fourth proportional to 10,022.80, 15,034.20 and 3,449.20 is: 5,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,022.80 : 15,034.20 = 3,449.20 : x
  2. Step 2: Convert to fraction form
    10,022.80/15,034.20 = 3,449.20/x
  3. Step 3: Cross multiply
    10,022.80x = 15,034.20 × 3,449.20
  4. Step 4: Simplify right side
    10,022.80x = 51,855,962.64
  5. Step 5: Solve for x
    x = 51,855,962.64/10,022.80
  6. Step 6: Final answer
    x = 5,173.80

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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.