Home / 21,067.44-29,073.04-12,116.72

Finding the Fourth Proportional to 21,067.44, 29,073.04 and 12,116.72

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Solution

The fourth proportional to 21,067.44, 29,073.04 and 12,116.72 is: 16,721.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.44 : 29,073.04 = 12,116.72 : x
  2. Step 2: Convert to fraction form
    21,067.44/29,073.04 = 12,116.72/x
  3. Step 3: Cross multiply
    21,067.44x = 29,073.04 × 12,116.72
  4. Step 4: Simplify right side
    21,067.44x = 352,269,885.23
  5. Step 5: Solve for x
    x = 352,269,885.23/21,067.44
  6. Step 6: Final answer
    x = 16,721.06

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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.