Home / 21,729.88-32,587.91-11,198.57

Finding the Fourth Proportional to 21,729.88, 32,587.91 and 11,198.57

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Solution

The fourth proportional to 21,729.88, 32,587.91 and 11,198.57 is: 16,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,729.88 : 32,587.91 = 11,198.57 : x
  2. Step 2: Convert to fraction form
    21,729.88/32,587.91 = 11,198.57/x
  3. Step 3: Cross multiply
    21,729.88x = 32,587.91 × 11,198.57
  4. Step 4: Simplify right side
    21,729.88x = 364,937,814.35
  5. Step 5: Solve for x
    x = 364,937,814.35/21,729.88
  6. Step 6: Final answer
    x = 16,794.28

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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.