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Finding the Fourth Proportional to 40,915.84, 61,259.49 and 22,128.57

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Solution

The fourth proportional to 40,915.84, 61,259.49 and 22,128.57 is: 33,131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,915.84 : 61,259.49 = 22,128.57 : x
  2. Step 2: Convert to fraction form
    40,915.84/61,259.49 = 22,128.57/x
  3. Step 3: Cross multiply
    40,915.84x = 61,259.49 × 22,128.57
  4. Step 4: Simplify right side
    40,915.84x = 1,355,584,495.69
  5. Step 5: Solve for x
    x = 1,355,584,495.69/40,915.84
  6. Step 6: Final answer
    x = 33,131.04

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