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Finding the Fourth Proportional to 18,110.40, 27,165.60 and 13,736.40

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Solution

The fourth proportional to 18,110.40, 27,165.60 and 13,736.40 is: 20,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110.40 : 27,165.60 = 13,736.40 : x
  2. Step 2: Convert to fraction form
    18,110.40/27,165.60 = 13,736.40/x
  3. Step 3: Cross multiply
    18,110.40x = 27,165.60 × 13,736.40
  4. Step 4: Simplify right side
    18,110.40x = 373,157,547.84
  5. Step 5: Solve for x
    x = 373,157,547.84/18,110.40
  6. Step 6: Final answer
    x = 20,604.60

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