Home / 19,311.12-28,936.44-15,414.48

Finding the Fourth Proportional to 19,311.12, 28,936.44 and 15,414.48

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Solution

The fourth proportional to 19,311.12, 28,936.44 and 15,414.48 is: 23,097.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,311.12 : 28,936.44 = 15,414.48 : x
  2. Step 2: Convert to fraction form
    19,311.12/28,936.44 = 15,414.48/x
  3. Step 3: Cross multiply
    19,311.12x = 28,936.44 × 15,414.48
  4. Step 4: Simplify right side
    19,311.12x = 446,040,175.65
  5. Step 5: Solve for x
    x = 446,040,175.65/19,311.12
  6. Step 6: Final answer
    x = 23,097.58

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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.