Home / 21,194.97-29,245.66-12,240.82

Finding the Fourth Proportional to 21,194.97, 29,245.66 and 12,240.82

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Solution

The fourth proportional to 21,194.97, 29,245.66 and 12,240.82 is: 16,890.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,194.97 : 29,245.66 = 12,240.82 : x
  2. Step 2: Convert to fraction form
    21,194.97/29,245.66 = 12,240.82/x
  3. Step 3: Cross multiply
    21,194.97x = 29,245.66 × 12,240.82
  4. Step 4: Simplify right side
    21,194.97x = 357,990,865.80
  5. Step 5: Solve for x
    x = 357,990,865.80/21,194.97
  6. Step 6: Final answer
    x = 16,890.37

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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.