Home / 19,464.82-29,230.24-12,721.56

Finding the Fourth Proportional to 19,464.82, 29,230.24 and 12,721.56

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Solution

The fourth proportional to 19,464.82, 29,230.24 and 12,721.56 is: 19,103.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,464.82 : 29,230.24 = 12,721.56 : x
  2. Step 2: Convert to fraction form
    19,464.82/29,230.24 = 12,721.56/x
  3. Step 3: Cross multiply
    19,464.82x = 29,230.24 × 12,721.56
  4. Step 4: Simplify right side
    19,464.82x = 371,854,251.97
  5. Step 5: Solve for x
    x = 371,854,251.97/19,464.82
  6. Step 6: Final answer
    x = 19,103.91

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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.