Home / 21,276.72-31,918.54-6,285.36

Finding the Fourth Proportional to 21,276.72, 31,918.54 and 6,285.36

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Solution

The fourth proportional to 21,276.72, 31,918.54 and 6,285.36 is: 9,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.72 : 31,918.54 = 6,285.36 : x
  2. Step 2: Convert to fraction form
    21,276.72/31,918.54 = 6,285.36/x
  3. Step 3: Cross multiply
    21,276.72x = 31,918.54 × 6,285.36
  4. Step 4: Simplify right side
    21,276.72x = 200,619,514.57
  5. Step 5: Solve for x
    x = 200,619,514.57/21,276.72
  6. Step 6: Final answer
    x = 9,429.06

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