Home / 21,729.26-29,986.36-11,793.26

Finding the Fourth Proportional to 21,729.26, 29,986.36 and 11,793.26

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Solution

The fourth proportional to 21,729.26, 29,986.36 and 11,793.26 is: 16,274.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,729.26 : 29,986.36 = 11,793.26 : x
  2. Step 2: Convert to fraction form
    21,729.26/29,986.36 = 11,793.26/x
  3. Step 3: Cross multiply
    21,729.26x = 29,986.36 × 11,793.26
  4. Step 4: Simplify right side
    21,729.26x = 353,636,939.93
  5. Step 5: Solve for x
    x = 353,636,939.93/21,729.26
  6. Step 6: Final answer
    x = 16,274.69

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1.5x scale

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.