Home / 21,514.25-29,689.48-11,823.83

Finding the Fourth Proportional to 21,514.25, 29,689.48 and 11,823.83

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Solution

The fourth proportional to 21,514.25, 29,689.48 and 11,823.83 is: 16,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514.25 : 29,689.48 = 11,823.83 : x
  2. Step 2: Convert to fraction form
    21,514.25/29,689.48 = 11,823.83/x
  3. Step 3: Cross multiply
    21,514.25x = 29,689.48 × 11,823.83
  4. Step 4: Simplify right side
    21,514.25x = 351,043,341.98
  5. Step 5: Solve for x
    x = 351,043,341.98/21,514.25
  6. Step 6: Final answer
    x = 16,316.78

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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.