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Finding the Fourth Proportional to 18,231.93, 27,347.89 and 4,380.93

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Solution

The fourth proportional to 18,231.93, 27,347.89 and 4,380.93 is: 6,571.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.93 : 27,347.89 = 4,380.93 : x
  2. Step 2: Convert to fraction form
    18,231.93/27,347.89 = 4,380.93/x
  3. Step 3: Cross multiply
    18,231.93x = 27,347.89 × 4,380.93
  4. Step 4: Simplify right side
    18,231.93x = 119,809,112.08
  5. Step 5: Solve for x
    x = 119,809,112.08/18,231.93
  6. Step 6: Final answer
    x = 6,571.39

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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.