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Finding the Fourth Proportional to 27,691.37, 38,189.97 and 16,928.09

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Solution

The fourth proportional to 27,691.37, 38,189.97 and 16,928.09 is: 23,346.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,691.37 : 38,189.97 = 16,928.09 : x
  2. Step 2: Convert to fraction form
    27,691.37/38,189.97 = 16,928.09/x
  3. Step 3: Cross multiply
    27,691.37x = 38,189.97 × 16,928.09
  4. Step 4: Simplify right side
    27,691.37x = 646,483,249.26
  5. Step 5: Solve for x
    x = 646,483,249.26/27,691.37
  6. Step 6: Final answer
    x = 23,346.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.