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Finding the Fourth Proportional to 21,986.64, 32,987.25 and 14,620.10

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Solution

The fourth proportional to 21,986.64, 32,987.25 and 14,620.10 is: 21,934.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986.64 : 32,987.25 = 14,620.10 : x
  2. Step 2: Convert to fraction form
    21,986.64/32,987.25 = 14,620.10/x
  3. Step 3: Cross multiply
    21,986.64x = 32,987.25 × 14,620.10
  4. Step 4: Simplify right side
    21,986.64x = 482,276,728.79
  5. Step 5: Solve for x
    x = 482,276,728.79/21,986.64
  6. Step 6: Final answer
    x = 21,934.99

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