Home / 21,396.14-29,516.72-13,844.90

Finding the Fourth Proportional to 21,396.14, 29,516.72 and 13,844.90

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Solution

The fourth proportional to 21,396.14, 29,516.72 and 13,844.90 is: 19,099.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.14 : 29,516.72 = 13,844.90 : x
  2. Step 2: Convert to fraction form
    21,396.14/29,516.72 = 13,844.90/x
  3. Step 3: Cross multiply
    21,396.14x = 29,516.72 × 13,844.90
  4. Step 4: Simplify right side
    21,396.14x = 408,656,036.73
  5. Step 5: Solve for x
    x = 408,656,036.73/21,396.14
  6. Step 6: Final answer
    x = 19,099.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.