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Finding the Fourth Proportional to 28,828.32, 43,164.60 and 14,948.16

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Solution

The fourth proportional to 28,828.32, 43,164.60 and 14,948.16 is: 22,381.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828.32 : 43,164.60 = 14,948.16 : x
  2. Step 2: Convert to fraction form
    28,828.32/43,164.60 = 14,948.16/x
  3. Step 3: Cross multiply
    28,828.32x = 43,164.60 × 14,948.16
  4. Step 4: Simplify right side
    28,828.32x = 645,231,347.14
  5. Step 5: Solve for x
    x = 645,231,347.14/28,828.32
  6. Step 6: Final answer
    x = 22,381.86

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