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Finding the Fourth Proportional to 21,991.10, 32,986.17 and 5,351.22

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Solution

The fourth proportional to 21,991.10, 32,986.17 and 5,351.22 is: 8,026.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991.10 : 32,986.17 = 5,351.22 : x
  2. Step 2: Convert to fraction form
    21,991.10/32,986.17 = 5,351.22/x
  3. Step 3: Cross multiply
    21,991.10x = 32,986.17 × 5,351.22
  4. Step 4: Simplify right side
    21,991.10x = 176,516,252.63
  5. Step 5: Solve for x
    x = 176,516,252.63/21,991.10
  6. Step 6: Final answer
    x = 8,026.72

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