Home / 21,374.62-29,469.99-13,808.14

Finding the Fourth Proportional to 21,374.62, 29,469.99 and 13,808.14

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Solution

The fourth proportional to 21,374.62, 29,469.99 and 13,808.14 is: 19,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,374.62 : 29,469.99 = 13,808.14 : x
  2. Step 2: Convert to fraction form
    21,374.62/29,469.99 = 13,808.14/x
  3. Step 3: Cross multiply
    21,374.62x = 29,469.99 × 13,808.14
  4. Step 4: Simplify right side
    21,374.62x = 406,925,747.72
  5. Step 5: Solve for x
    x = 406,925,747.72/21,374.62
  6. Step 6: Final answer
    x = 19,037.80

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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.