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Finding the Fourth Proportional to 27,903.92, 41,855.96 and 19,621

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Solution

The fourth proportional to 27,903.92, 41,855.96 and 19,621 is: 29,431.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,903.92 : 41,855.96 = 19,621 : x
  2. Step 2: Convert to fraction form
    27,903.92/41,855.96 = 19,621/x
  3. Step 3: Cross multiply
    27,903.92x = 41,855.96 × 19,621
  4. Step 4: Simplify right side
    27,903.92x = 821,255,791.16
  5. Step 5: Solve for x
    x = 821,255,791.16/27,903.92
  6. Step 6: Final answer
    x = 29,431.56

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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.