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Finding the Fourth Proportional to 31,308.97, 46,970.54 and 17,988.12

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Solution

The fourth proportional to 31,308.97, 46,970.54 and 17,988.12 is: 26,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,308.97 : 46,970.54 = 17,988.12 : x
  2. Step 2: Convert to fraction form
    31,308.97/46,970.54 = 17,988.12/x
  3. Step 3: Cross multiply
    31,308.97x = 46,970.54 × 17,988.12
  4. Step 4: Simplify right side
    31,308.97x = 844,911,709.98
  5. Step 5: Solve for x
    x = 844,911,709.98/31,308.97
  6. Step 6: Final answer
    x = 26,986.25

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