Home / 21,729.07-29,986.11-11,793.07

Finding the Fourth Proportional to 21,729.07, 29,986.11 and 11,793.07

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Solution

The fourth proportional to 21,729.07, 29,986.11 and 11,793.07 is: 16,274.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,729.07 : 29,986.11 = 11,793.07 : x
  2. Step 2: Convert to fraction form
    21,729.07/29,986.11 = 11,793.07/x
  3. Step 3: Cross multiply
    21,729.07x = 29,986.11 × 11,793.07
  4. Step 4: Simplify right side
    21,729.07x = 353,628,294.26
  5. Step 5: Solve for x
    x = 353,628,294.26/21,729.07
  6. Step 6: Final answer
    x = 16,274.43

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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.