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Finding the Fourth Proportional to 43,908.32, 65,850.60 and 12,316.64

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Solution

The fourth proportional to 43,908.32, 65,850.60 and 12,316.64 is: 18,471.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,908.32 : 65,850.60 = 12,316.64 : x
  2. Step 2: Convert to fraction form
    43,908.32/65,850.60 = 12,316.64/x
  3. Step 3: Cross multiply
    43,908.32x = 65,850.60 × 12,316.64
  4. Step 4: Simplify right side
    43,908.32x = 811,058,133.98
  5. Step 5: Solve for x
    x = 811,058,133.98/43,908.32
  6. Step 6: Final answer
    x = 18,471.63

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