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Finding the Fourth Proportional to 27,119.64, 40,679.50 and 7,398.20

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Solution

The fourth proportional to 27,119.64, 40,679.50 and 7,398.20 is: 11,097.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,119.64 : 40,679.50 = 7,398.20 : x
  2. Step 2: Convert to fraction form
    27,119.64/40,679.50 = 7,398.20/x
  3. Step 3: Cross multiply
    27,119.64x = 40,679.50 × 7,398.20
  4. Step 4: Simplify right side
    27,119.64x = 300,955,076.90
  5. Step 5: Solve for x
    x = 300,955,076.90/27,119.64
  6. Step 6: Final answer
    x = 11,097.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.