Home / 21,245.58-29,321.19-12,292.92

Finding the Fourth Proportional to 21,245.58, 29,321.19 and 12,292.92

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Solution

The fourth proportional to 21,245.58, 29,321.19 and 12,292.92 is: 16,965.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,245.58 : 29,321.19 = 12,292.92 : x
  2. Step 2: Convert to fraction form
    21,245.58/29,321.19 = 12,292.92/x
  3. Step 3: Cross multiply
    21,245.58x = 29,321.19 × 12,292.92
  4. Step 4: Simplify right side
    21,245.58x = 360,443,042.97
  5. Step 5: Solve for x
    x = 360,443,042.97/21,245.58
  6. Step 6: Final answer
    x = 16,965.55

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Double scale
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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.