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Finding the Fourth Proportional to 27,206.74, 40,821.72 and 11,415.68

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Solution

The fourth proportional to 27,206.74, 40,821.72 and 11,415.68 is: 17,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,206.74 : 40,821.72 = 11,415.68 : x
  2. Step 2: Convert to fraction form
    27,206.74/40,821.72 = 11,415.68/x
  3. Step 3: Cross multiply
    27,206.74x = 40,821.72 × 11,415.68
  4. Step 4: Simplify right side
    27,206.74x = 466,007,892.57
  5. Step 5: Solve for x
    x = 466,007,892.57/27,206.74
  6. Step 6: Final answer
    x = 17,128.40

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