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Finding the Fourth Proportional to 43,393.80, 65,090.70 and 15,685.32

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Solution

The fourth proportional to 43,393.80, 65,090.70 and 15,685.32 is: 23,527.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,393.80 : 65,090.70 = 15,685.32 : x
  2. Step 2: Convert to fraction form
    43,393.80/65,090.70 = 15,685.32/x
  3. Step 3: Cross multiply
    43,393.80x = 65,090.70 × 15,685.32
  4. Step 4: Simplify right side
    43,393.80x = 1,020,968,458.52
  5. Step 5: Solve for x
    x = 1,020,968,458.52/43,393.80
  6. Step 6: Final answer
    x = 23,527.98

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