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Finding the Fourth Proportional to 28,248.62, 38,966.90 and 16,309.74

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Solution

The fourth proportional to 28,248.62, 38,966.90 and 16,309.74 is: 22,498.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.62 : 38,966.90 = 16,309.74 : x
  2. Step 2: Convert to fraction form
    28,248.62/38,966.90 = 16,309.74/x
  3. Step 3: Cross multiply
    28,248.62x = 38,966.90 × 16,309.74
  4. Step 4: Simplify right side
    28,248.62x = 635,540,007.61
  5. Step 5: Solve for x
    x = 635,540,007.61/28,248.62
  6. Step 6: Final answer
    x = 22,498.09

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