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Finding the Fourth Proportional to 28,971.03, 43,456.10 and 9,249.47

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Solution

The fourth proportional to 28,971.03, 43,456.10 and 9,249.47 is: 13,874.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.03 : 43,456.10 = 9,249.47 : x
  2. Step 2: Convert to fraction form
    28,971.03/43,456.10 = 9,249.47/x
  3. Step 3: Cross multiply
    28,971.03x = 43,456.10 × 9,249.47
  4. Step 4: Simplify right side
    28,971.03x = 401,945,629.74
  5. Step 5: Solve for x
    x = 401,945,629.74/28,971.03
  6. Step 6: Final answer
    x = 13,874.05

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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.