Home / 21,198.12-31,797.18-11,307.44

Finding the Fourth Proportional to 21,198.12, 31,797.18 and 11,307.44

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Solution

The fourth proportional to 21,198.12, 31,797.18 and 11,307.44 is: 16,961.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198.12 : 31,797.18 = 11,307.44 : x
  2. Step 2: Convert to fraction form
    21,198.12/31,797.18 = 11,307.44/x
  3. Step 3: Cross multiply
    21,198.12x = 31,797.18 × 11,307.44
  4. Step 4: Simplify right side
    21,198.12x = 359,544,546.03
  5. Step 5: Solve for x
    x = 359,544,546.03/21,198.12
  6. Step 6: Final answer
    x = 16,961.15

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Similar ratio
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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.