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Finding the Fourth Proportional to 31,140.54, 46,682.02 and 12,416.02

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Solution

The fourth proportional to 31,140.54, 46,682.02 and 12,416.02 is: 18,612.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,140.54 : 46,682.02 = 12,416.02 : x
  2. Step 2: Convert to fraction form
    31,140.54/46,682.02 = 12,416.02/x
  3. Step 3: Cross multiply
    31,140.54x = 46,682.02 × 12,416.02
  4. Step 4: Simplify right side
    31,140.54x = 579,604,893.96
  5. Step 5: Solve for x
    x = 579,604,893.96/31,140.54
  6. Step 6: Final answer
    x = 18,612.55

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