Home / 19,904.38-29,835.79-7,418.97

Finding the Fourth Proportional to 19,904.38, 29,835.79 and 7,418.97

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Solution

The fourth proportional to 19,904.38, 29,835.79 and 7,418.97 is: 11,120.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,904.38 : 29,835.79 = 7,418.97 : x
  2. Step 2: Convert to fraction form
    19,904.38/29,835.79 = 7,418.97/x
  3. Step 3: Cross multiply
    19,904.38x = 29,835.79 × 7,418.97
  4. Step 4: Simplify right side
    19,904.38x = 221,350,812.39
  5. Step 5: Solve for x
    x = 221,350,812.39/19,904.38
  6. Step 6: Final answer
    x = 11,120.71

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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.