Home / 21,811.97-30,098.96-12,251.36

Finding the Fourth Proportional to 21,811.97, 30,098.96 and 12,251.36

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Solution

The fourth proportional to 21,811.97, 30,098.96 and 12,251.36 is: 16,906.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,811.97 : 30,098.96 = 12,251.36 : x
  2. Step 2: Convert to fraction form
    21,811.97/30,098.96 = 12,251.36/x
  3. Step 3: Cross multiply
    21,811.97x = 30,098.96 × 12,251.36
  4. Step 4: Simplify right side
    21,811.97x = 368,753,194.59
  5. Step 5: Solve for x
    x = 368,753,194.59/21,811.97
  6. Step 6: Final answer
    x = 16,906.00

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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.