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Finding the Fourth Proportional to 21,326.90, 31,979.81 and 6,532.25

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Solution

The fourth proportional to 21,326.90, 31,979.81 and 6,532.25 is: 9,795.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.90 : 31,979.81 = 6,532.25 : x
  2. Step 2: Convert to fraction form
    21,326.90/31,979.81 = 6,532.25/x
  3. Step 3: Cross multiply
    21,326.90x = 31,979.81 × 6,532.25
  4. Step 4: Simplify right side
    21,326.90x = 208,899,970.30
  5. Step 5: Solve for x
    x = 208,899,970.30/21,326.90
  6. Step 6: Final answer
    x = 9,795.14

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