Home / 21,063.62-29,067.75-12,112.85

Finding the Fourth Proportional to 21,063.62, 29,067.75 and 12,112.85

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Solution

The fourth proportional to 21,063.62, 29,067.75 and 12,112.85 is: 16,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.62 : 29,067.75 = 12,112.85 : x
  2. Step 2: Convert to fraction form
    21,063.62/29,067.75 = 12,112.85/x
  3. Step 3: Cross multiply
    21,063.62x = 29,067.75 × 12,112.85
  4. Step 4: Simplify right side
    21,063.62x = 352,093,150.25
  5. Step 5: Solve for x
    x = 352,093,150.25/21,063.62
  6. Step 6: Final answer
    x = 16,715.70

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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.