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Finding the Fourth Proportional to 27,130.05, 40,622.17 and 17,215.65

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Solution

The fourth proportional to 27,130.05, 40,622.17 and 17,215.65 is: 25,777.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,130.05 : 40,622.17 = 17,215.65 : x
  2. Step 2: Convert to fraction form
    27,130.05/40,622.17 = 17,215.65/x
  3. Step 3: Cross multiply
    27,130.05x = 40,622.17 × 17,215.65
  4. Step 4: Simplify right side
    27,130.05x = 699,337,060.96
  5. Step 5: Solve for x
    x = 699,337,060.96/27,130.05
  6. Step 6: Final answer
    x = 25,777.21

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