Home / 12,022.38-18,036.33-4,231.26

Finding the Fourth Proportional to 12,022.38, 18,036.33 and 4,231.26

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Solution

The fourth proportional to 12,022.38, 18,036.33 and 4,231.26 is: 6,347.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,022.38 : 18,036.33 = 4,231.26 : x
  2. Step 2: Convert to fraction form
    12,022.38/18,036.33 = 4,231.26/x
  3. Step 3: Cross multiply
    12,022.38x = 18,036.33 × 4,231.26
  4. Step 4: Simplify right side
    12,022.38x = 76,316,401.68
  5. Step 5: Solve for x
    x = 76,316,401.68/12,022.38
  6. Step 6: Final answer
    x = 6,347.86

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