Home / 28,110.60-38,791.58-16,175.78

Finding the Fourth Proportional to 28,110.60, 38,791.58 and 16,175.78

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Solution

The fourth proportional to 28,110.60, 38,791.58 and 16,175.78 is: 22,321.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.60 : 38,791.58 = 16,175.78 : x
  2. Step 2: Convert to fraction form
    28,110.60/38,791.58 = 16,175.78/x
  3. Step 3: Cross multiply
    28,110.60x = 38,791.58 × 16,175.78
  4. Step 4: Simplify right side
    28,110.60x = 627,484,063.93
  5. Step 5: Solve for x
    x = 627,484,063.93/28,110.60
  6. Step 6: Final answer
    x = 22,321.97

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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.