Home / 21,414.12-29,553.06-11,982.60

Finding the Fourth Proportional to 21,414.12, 29,553.06 and 11,982.60

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Solution

The fourth proportional to 21,414.12, 29,553.06 and 11,982.60 is: 16,536.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,414.12 : 29,553.06 = 11,982.60 : x
  2. Step 2: Convert to fraction form
    21,414.12/29,553.06 = 11,982.60/x
  3. Step 3: Cross multiply
    21,414.12x = 29,553.06 × 11,982.60
  4. Step 4: Simplify right side
    21,414.12x = 354,122,496.76
  5. Step 5: Solve for x
    x = 354,122,496.76/21,414.12
  6. Step 6: Final answer
    x = 16,536.87

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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.