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Finding the Fourth Proportional to 19,845.16, 27,387.96 and 10,894.42

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Solution

The fourth proportional to 19,845.16, 27,387.96 and 10,894.42 is: 15,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,845.16 : 27,387.96 = 10,894.42 : x
  2. Step 2: Convert to fraction form
    19,845.16/27,387.96 = 10,894.42/x
  3. Step 3: Cross multiply
    19,845.16x = 27,387.96 × 10,894.42
  4. Step 4: Simplify right side
    19,845.16x = 298,375,939.18
  5. Step 5: Solve for x
    x = 298,375,939.18/19,845.16
  6. Step 6: Final answer
    x = 15,035.20

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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.