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Finding the Fourth Proportional to 31,710, 43,759.80 and 18,462

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Solution

The fourth proportional to 31,710, 43,759.80 and 18,462 is: 25,477.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,710 : 43,759.80 = 18,462 : x
  2. Step 2: Convert to fraction form
    31,710/43,759.80 = 18,462/x
  3. Step 3: Cross multiply
    31,710x = 43,759.80 × 18,462
  4. Step 4: Simplify right side
    31,710x = 807,893,427.60
  5. Step 5: Solve for x
    x = 807,893,427.60/31,710
  6. Step 6: Final answer
    x = 25,477.56

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