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Finding the Fourth Proportional to 38,800.65, 58,201.35 and 21,260.91

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Solution

The fourth proportional to 38,800.65, 58,201.35 and 21,260.91 is: 31,891.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,800.65 : 58,201.35 = 21,260.91 : x
  2. Step 2: Convert to fraction form
    38,800.65/58,201.35 = 21,260.91/x
  3. Step 3: Cross multiply
    38,800.65x = 58,201.35 × 21,260.91
  4. Step 4: Simplify right side
    38,800.65x = 1,237,413,664.23
  5. Step 5: Solve for x
    x = 1,237,413,664.23/38,800.65
  6. Step 6: Final answer
    x = 31,891.57

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