Home / 21,571.11-32,393.79-11,729.61

Finding the Fourth Proportional to 21,571.11, 32,393.79 and 11,729.61

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Solution

The fourth proportional to 21,571.11, 32,393.79 and 11,729.61 is: 17,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.11 : 32,393.79 = 11,729.61 : x
  2. Step 2: Convert to fraction form
    21,571.11/32,393.79 = 11,729.61/x
  3. Step 3: Cross multiply
    21,571.11x = 32,393.79 × 11,729.61
  4. Step 4: Simplify right side
    21,571.11x = 379,966,523.12
  5. Step 5: Solve for x
    x = 379,966,523.12/21,571.11
  6. Step 6: Final answer
    x = 17,614.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.