Home / 21,083.82-29,092.16-12,589.37

Finding the Fourth Proportional to 21,083.82, 29,092.16 and 12,589.37

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Solution

The fourth proportional to 21,083.82, 29,092.16 and 12,589.37 is: 17,371.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.82 : 29,092.16 = 12,589.37 : x
  2. Step 2: Convert to fraction form
    21,083.82/29,092.16 = 12,589.37/x
  3. Step 3: Cross multiply
    21,083.82x = 29,092.16 × 12,589.37
  4. Step 4: Simplify right side
    21,083.82x = 366,251,757.93
  5. Step 5: Solve for x
    x = 366,251,757.93/21,083.82
  6. Step 6: Final answer
    x = 17,371.23

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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.