Home / 21,546.40-29,733.68-11,986.18

Finding the Fourth Proportional to 21,546.40, 29,733.68 and 11,986.18

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Solution

The fourth proportional to 21,546.40, 29,733.68 and 11,986.18 is: 16,540.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,546.40 : 29,733.68 = 11,986.18 : x
  2. Step 2: Convert to fraction form
    21,546.40/29,733.68 = 11,986.18/x
  3. Step 3: Cross multiply
    21,546.40x = 29,733.68 × 11,986.18
  4. Step 4: Simplify right side
    21,546.40x = 356,393,240.54
  5. Step 5: Solve for x
    x = 356,393,240.54/21,546.40
  6. Step 6: Final answer
    x = 16,540.73

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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.