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Finding the Fourth Proportional to 28,429.61, 39,184.67 and 19,934.33

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Solution

The fourth proportional to 28,429.61, 39,184.67 and 19,934.33 is: 27,475.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429.61 : 39,184.67 = 19,934.33 : x
  2. Step 2: Convert to fraction form
    28,429.61/39,184.67 = 19,934.33/x
  3. Step 3: Cross multiply
    28,429.61x = 39,184.67 × 19,934.33
  4. Step 4: Simplify right side
    28,429.61x = 781,119,996.63
  5. Step 5: Solve for x
    x = 781,119,996.63/28,429.61
  6. Step 6: Final answer
    x = 27,475.58

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