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Finding the Fourth Proportional to 17,031.04, 25,531.40 and 6,640.40

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Solution

The fourth proportional to 17,031.04, 25,531.40 and 6,640.40 is: 9,954.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,031.04 : 25,531.40 = 6,640.40 : x
  2. Step 2: Convert to fraction form
    17,031.04/25,531.40 = 6,640.40/x
  3. Step 3: Cross multiply
    17,031.04x = 25,531.40 × 6,640.40
  4. Step 4: Simplify right side
    17,031.04x = 169,538,708.56
  5. Step 5: Solve for x
    x = 169,538,708.56/17,031.04
  6. Step 6: Final answer
    x = 9,954.69

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