Home / 18,985.67-28,481.22-5,839.14

Finding the Fourth Proportional to 18,985.67, 28,481.22 and 5,839.14

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Solution

The fourth proportional to 18,985.67, 28,481.22 and 5,839.14 is: 8,759.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.67 : 28,481.22 = 5,839.14 : x
  2. Step 2: Convert to fraction form
    18,985.67/28,481.22 = 5,839.14/x
  3. Step 3: Cross multiply
    18,985.67x = 28,481.22 × 5,839.14
  4. Step 4: Simplify right side
    18,985.67x = 166,305,830.95
  5. Step 5: Solve for x
    x = 166,305,830.95/18,985.67
  6. Step 6: Final answer
    x = 8,759.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.