Home / 21,673.80-29,910.18-12,242.52

Finding the Fourth Proportional to 21,673.80, 29,910.18 and 12,242.52

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Solution

The fourth proportional to 21,673.80, 29,910.18 and 12,242.52 is: 16,894.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673.80 : 29,910.18 = 12,242.52 : x
  2. Step 2: Convert to fraction form
    21,673.80/29,910.18 = 12,242.52/x
  3. Step 3: Cross multiply
    21,673.80x = 29,910.18 × 12,242.52
  4. Step 4: Simplify right side
    21,673.80x = 366,175,976.85
  5. Step 5: Solve for x
    x = 366,175,976.85/21,673.80
  6. Step 6: Final answer
    x = 16,894.87

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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.