Home / 21,067.28-29,073.64-11,634.96

Finding the Fourth Proportional to 21,067.28, 29,073.64 and 11,634.96

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Solution

The fourth proportional to 21,067.28, 29,073.64 and 11,634.96 is: 16,056.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.28 : 29,073.64 = 11,634.96 : x
  2. Step 2: Convert to fraction form
    21,067.28/29,073.64 = 11,634.96/x
  3. Step 3: Cross multiply
    21,067.28x = 29,073.64 × 11,634.96
  4. Step 4: Simplify right side
    21,067.28x = 338,270,638.45
  5. Step 5: Solve for x
    x = 338,270,638.45/21,067.28
  6. Step 6: Final answer
    x = 16,056.68

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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.