Home / 17,112.30-25,687.65-13,233.90

Finding the Fourth Proportional to 17,112.30, 25,687.65 and 13,233.90

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Solution

The fourth proportional to 17,112.30, 25,687.65 and 13,233.90 is: 19,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,112.30 : 25,687.65 = 13,233.90 : x
  2. Step 2: Convert to fraction form
    17,112.30/25,687.65 = 13,233.90/x
  3. Step 3: Cross multiply
    17,112.30x = 25,687.65 × 13,233.90
  4. Step 4: Simplify right side
    17,112.30x = 339,947,791.34
  5. Step 5: Solve for x
    x = 339,947,791.34/17,112.30
  6. Step 6: Final answer
    x = 19,865.70

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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.