Home / 21,729.43-29,986.27-11,793.43

Finding the Fourth Proportional to 21,729.43, 29,986.27 and 11,793.43

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Solution

The fourth proportional to 21,729.43, 29,986.27 and 11,793.43 is: 16,274.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,729.43 : 29,986.27 = 11,793.43 : x
  2. Step 2: Convert to fraction form
    21,729.43/29,986.27 = 11,793.43/x
  3. Step 3: Cross multiply
    21,729.43x = 29,986.27 × 11,793.43
  4. Step 4: Simplify right side
    21,729.43x = 353,640,976.21
  5. Step 5: Solve for x
    x = 353,640,976.21/21,729.43
  6. Step 6: Final answer
    x = 16,274.75

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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.