Home / 13,231.92-19,842.38-5,629.98

Finding the Fourth Proportional to 13,231.92, 19,842.38 and 5,629.98

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Solution

The fourth proportional to 13,231.92, 19,842.38 and 5,629.98 is: 8,442.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.92 : 19,842.38 = 5,629.98 : x
  2. Step 2: Convert to fraction form
    13,231.92/19,842.38 = 5,629.98/x
  3. Step 3: Cross multiply
    13,231.92x = 19,842.38 × 5,629.98
  4. Step 4: Simplify right side
    13,231.92x = 111,712,202.55
  5. Step 5: Solve for x
    x = 111,712,202.55/13,231.92
  6. Step 6: Final answer
    x = 8,442.63

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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.