Home / 19,474.38-29,170.24-18,792.36

Finding the Fourth Proportional to 19,474.38, 29,170.24 and 18,792.36

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Solution

The fourth proportional to 19,474.38, 29,170.24 and 18,792.36 is: 28,148.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,474.38 : 29,170.24 = 18,792.36 : x
  2. Step 2: Convert to fraction form
    19,474.38/29,170.24 = 18,792.36/x
  3. Step 3: Cross multiply
    19,474.38x = 29,170.24 × 18,792.36
  4. Step 4: Simplify right side
    19,474.38x = 548,177,651.37
  5. Step 5: Solve for x
    x = 548,177,651.37/19,474.38
  6. Step 6: Final answer
    x = 28,148.66

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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.