Home / 19,918.27-29,870.42-5,874.56

Finding the Fourth Proportional to 19,918.27, 29,870.42 and 5,874.56

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Solution

The fourth proportional to 19,918.27, 29,870.42 and 5,874.56 is: 8,809.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.27 : 29,870.42 = 5,874.56 : x
  2. Step 2: Convert to fraction form
    19,918.27/29,870.42 = 5,874.56/x
  3. Step 3: Cross multiply
    19,918.27x = 29,870.42 × 5,874.56
  4. Step 4: Simplify right side
    19,918.27x = 175,475,545.14
  5. Step 5: Solve for x
    x = 175,475,545.14/19,918.27
  6. Step 6: Final answer
    x = 8,809.78

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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.