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Finding the Fourth Proportional to 17,999.87, 24,839.60 and 11,289.42

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Solution

The fourth proportional to 17,999.87, 24,839.60 and 11,289.42 is: 15,579.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,999.87 : 24,839.60 = 11,289.42 : x
  2. Step 2: Convert to fraction form
    17,999.87/24,839.60 = 11,289.42/x
  3. Step 3: Cross multiply
    17,999.87x = 24,839.60 × 11,289.42
  4. Step 4: Simplify right side
    17,999.87x = 280,424,620.58
  5. Step 5: Solve for x
    x = 280,424,620.58/17,999.87
  6. Step 6: Final answer
    x = 15,579.26

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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.