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Finding the Fourth Proportional to 19,298.16, 28,947.23 and 5,447.16

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Solution

The fourth proportional to 19,298.16, 28,947.23 and 5,447.16 is: 8,170.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,298.16 : 28,947.23 = 5,447.16 : x
  2. Step 2: Convert to fraction form
    19,298.16/28,947.23 = 5,447.16/x
  3. Step 3: Cross multiply
    19,298.16x = 28,947.23 × 5,447.16
  4. Step 4: Simplify right side
    19,298.16x = 157,680,166.13
  5. Step 5: Solve for x
    x = 157,680,166.13/19,298.16
  6. Step 6: Final answer
    x = 8,170.74

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