Home / 21,982.04-30,335.17-11,910.73

Finding the Fourth Proportional to 21,982.04, 30,335.17 and 11,910.73

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Solution

The fourth proportional to 21,982.04, 30,335.17 and 11,910.73 is: 16,436.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.04 : 30,335.17 = 11,910.73 : x
  2. Step 2: Convert to fraction form
    21,982.04/30,335.17 = 11,910.73/x
  3. Step 3: Cross multiply
    21,982.04x = 30,335.17 × 11,910.73
  4. Step 4: Simplify right side
    21,982.04x = 361,314,019.37
  5. Step 5: Solve for x
    x = 361,314,019.37/21,982.04
  6. Step 6: Final answer
    x = 16,436.78

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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.