Home / 28,067.86-38,716.32-16,729.72

Finding the Fourth Proportional to 28,067.86, 38,716.32 and 16,729.72

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Solution

The fourth proportional to 28,067.86, 38,716.32 and 16,729.72 is: 23,076.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.86 : 38,716.32 = 16,729.72 : x
  2. Step 2: Convert to fraction form
    28,067.86/38,716.32 = 16,729.72/x
  3. Step 3: Cross multiply
    28,067.86x = 38,716.32 × 16,729.72
  4. Step 4: Simplify right side
    28,067.86x = 647,713,193.03
  5. Step 5: Solve for x
    x = 647,713,193.03/28,067.86
  6. Step 6: Final answer
    x = 23,076.69

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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.