Home / 20,901.82-28,843.41-11,948.14

Finding the Fourth Proportional to 20,901.82, 28,843.41 and 11,948.14

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Solution

The fourth proportional to 20,901.82, 28,843.41 and 11,948.14 is: 16,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,901.82 : 28,843.41 = 11,948.14 : x
  2. Step 2: Convert to fraction form
    20,901.82/28,843.41 = 11,948.14/x
  3. Step 3: Cross multiply
    20,901.82x = 28,843.41 × 11,948.14
  4. Step 4: Simplify right side
    20,901.82x = 344,625,100.76
  5. Step 5: Solve for x
    x = 344,625,100.76/20,901.82
  6. Step 6: Final answer
    x = 16,487.80

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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.