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Finding the Fourth Proportional to 35,420.52, 53,144.28 and 13,243.80

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Solution

The fourth proportional to 35,420.52, 53,144.28 and 13,243.80 is: 19,870.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,420.52 : 53,144.28 = 13,243.80 : x
  2. Step 2: Convert to fraction form
    35,420.52/53,144.28 = 13,243.80/x
  3. Step 3: Cross multiply
    35,420.52x = 53,144.28 × 13,243.80
  4. Step 4: Simplify right side
    35,420.52x = 703,832,215.46
  5. Step 5: Solve for x
    x = 703,832,215.46/35,420.52
  6. Step 6: Final answer
    x = 19,870.75

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