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Finding the Fourth Proportional to 25,961.70, 38,914.74 and 18,543.65

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Solution

The fourth proportional to 25,961.70, 38,914.74 and 18,543.65 is: 27,795.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,961.70 : 38,914.74 = 18,543.65 : x
  2. Step 2: Convert to fraction form
    25,961.70/38,914.74 = 18,543.65/x
  3. Step 3: Cross multiply
    25,961.70x = 38,914.74 × 18,543.65
  4. Step 4: Simplify right side
    25,961.70x = 721,621,415.69
  5. Step 5: Solve for x
    x = 721,621,415.69/25,961.70
  6. Step 6: Final answer
    x = 27,795.61

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