Home / 18,287.82-27,429.30-5,141.52

Finding the Fourth Proportional to 18,287.82, 27,429.30 and 5,141.52

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Solution

The fourth proportional to 18,287.82, 27,429.30 and 5,141.52 is: 7,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.82 : 27,429.30 = 5,141.52 : x
  2. Step 2: Convert to fraction form
    18,287.82/27,429.30 = 5,141.52/x
  3. Step 3: Cross multiply
    18,287.82x = 27,429.30 × 5,141.52
  4. Step 4: Simplify right side
    18,287.82x = 141,028,294.54
  5. Step 5: Solve for x
    x = 141,028,294.54/18,287.82
  6. Step 6: Final answer
    x = 7,711.60

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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.