Home / 30,085.80-41,517.28-16,656

Finding the Fourth Proportional to 30,085.80, 41,517.28 and 16,656

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Solution

The fourth proportional to 30,085.80, 41,517.28 and 16,656 is: 22,984.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,085.80 : 41,517.28 = 16,656 : x
  2. Step 2: Convert to fraction form
    30,085.80/41,517.28 = 16,656/x
  3. Step 3: Cross multiply
    30,085.80x = 41,517.28 × 16,656
  4. Step 4: Simplify right side
    30,085.80x = 691,511,815.68
  5. Step 5: Solve for x
    x = 691,511,815.68/30,085.80
  6. Step 6: Final answer
    x = 22,984.66

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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.