Home / 21,583.25-29,782.73-15,921.06

Finding the Fourth Proportional to 21,583.25, 29,782.73 and 15,921.06

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Solution

The fourth proportional to 21,583.25, 29,782.73 and 15,921.06 is: 21,969.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583.25 : 29,782.73 = 15,921.06 : x
  2. Step 2: Convert to fraction form
    21,583.25/29,782.73 = 15,921.06/x
  3. Step 3: Cross multiply
    21,583.25x = 29,782.73 × 15,921.06
  4. Step 4: Simplify right side
    21,583.25x = 474,172,551.69
  5. Step 5: Solve for x
    x = 474,172,551.69/21,583.25
  6. Step 6: Final answer
    x = 21,969.47

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