Home / 21,682.44-29,920.86-12,251.36

Finding the Fourth Proportional to 21,682.44, 29,920.86 and 12,251.36

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Solution

The fourth proportional to 21,682.44, 29,920.86 and 12,251.36 is: 16,906.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,682.44 : 29,920.86 = 12,251.36 : x
  2. Step 2: Convert to fraction form
    21,682.44/29,920.86 = 12,251.36/x
  3. Step 3: Cross multiply
    21,682.44x = 29,920.86 × 12,251.36
  4. Step 4: Simplify right side
    21,682.44x = 366,571,227.37
  5. Step 5: Solve for x
    x = 366,571,227.37/21,682.44
  6. Step 6: Final answer
    x = 16,906.36

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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.