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Finding the Fourth Proportional to 31,303.56, 46,960.80 and 13,772.93

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Solution

The fourth proportional to 31,303.56, 46,960.80 and 13,772.93 is: 20,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,303.56 : 46,960.80 = 13,772.93 : x
  2. Step 2: Convert to fraction form
    31,303.56/46,960.80 = 13,772.93/x
  3. Step 3: Cross multiply
    31,303.56x = 46,960.80 × 13,772.93
  4. Step 4: Simplify right side
    31,303.56x = 646,787,892.14
  5. Step 5: Solve for x
    x = 646,787,892.14/31,303.56
  6. Step 6: Final answer
    x = 20,661.80

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