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Finding the Fourth Proportional to 31,473.62, 47,217.76 and 10,412.81

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Solution

The fourth proportional to 31,473.62, 47,217.76 and 10,412.81 is: 15,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,473.62 : 47,217.76 = 10,412.81 : x
  2. Step 2: Convert to fraction form
    31,473.62/47,217.76 = 10,412.81/x
  3. Step 3: Cross multiply
    31,473.62x = 47,217.76 × 10,412.81
  4. Step 4: Simplify right side
    31,473.62x = 491,669,563.51
  5. Step 5: Solve for x
    x = 491,669,563.51/31,473.62
  6. Step 6: Final answer
    x = 15,621.64

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