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Finding the Fourth Proportional to 30,854.80, 42,580.92 and 18,277.12

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Solution

The fourth proportional to 30,854.80, 42,580.92 and 18,277.12 is: 25,223.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,854.80 : 42,580.92 = 18,277.12 : x
  2. Step 2: Convert to fraction form
    30,854.80/42,580.92 = 18,277.12/x
  3. Step 3: Cross multiply
    30,854.80x = 42,580.92 × 18,277.12
  4. Step 4: Simplify right side
    30,854.80x = 778,256,584.55
  5. Step 5: Solve for x
    x = 778,256,584.55/30,854.80
  6. Step 6: Final answer
    x = 25,223.19

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