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Finding the Fourth Proportional to 17,997.60, 27,028.80 and 13,072.80

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Solution

The fourth proportional to 17,997.60, 27,028.80 and 13,072.80 is: 19,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,997.60 : 27,028.80 = 13,072.80 : x
  2. Step 2: Convert to fraction form
    17,997.60/27,028.80 = 13,072.80/x
  3. Step 3: Cross multiply
    17,997.60x = 27,028.80 × 13,072.80
  4. Step 4: Simplify right side
    17,997.60x = 353,342,096.64
  5. Step 5: Solve for x
    x = 353,342,096.64/17,997.60
  6. Step 6: Final answer
    x = 19,632.73

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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.