Home / 13,828.73-20,743.07-3,440.48

Finding the Fourth Proportional to 13,828.73, 20,743.07 and 3,440.48

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Solution

The fourth proportional to 13,828.73, 20,743.07 and 3,440.48 is: 5,160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.73 : 20,743.07 = 3,440.48 : x
  2. Step 2: Convert to fraction form
    13,828.73/20,743.07 = 3,440.48/x
  3. Step 3: Cross multiply
    13,828.73x = 20,743.07 × 3,440.48
  4. Step 4: Simplify right side
    13,828.73x = 71,365,996.56
  5. Step 5: Solve for x
    x = 71,365,996.56/13,828.73
  6. Step 6: Final answer
    x = 5,160.71

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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.