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Finding the Fourth Proportional to 28,114.03, 42,171.03 and 11,481.89

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Solution

The fourth proportional to 28,114.03, 42,171.03 and 11,481.89 is: 17,222.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.03 : 42,171.03 = 11,481.89 : x
  2. Step 2: Convert to fraction form
    28,114.03/42,171.03 = 11,481.89/x
  3. Step 3: Cross multiply
    28,114.03x = 42,171.03 × 11,481.89
  4. Step 4: Simplify right side
    28,114.03x = 484,203,233.07
  5. Step 5: Solve for x
    x = 484,203,233.07/28,114.03
  6. Step 6: Final answer
    x = 17,222.83

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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.