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Finding the Fourth Proportional to 22,425.60, 33,638.40 and 9,273.60

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Solution

The fourth proportional to 22,425.60, 33,638.40 and 9,273.60 is: 13,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,425.60 : 33,638.40 = 9,273.60 : x
  2. Step 2: Convert to fraction form
    22,425.60/33,638.40 = 9,273.60/x
  3. Step 3: Cross multiply
    22,425.60x = 33,638.40 × 9,273.60
  4. Step 4: Simplify right side
    22,425.60x = 311,949,066.24
  5. Step 5: Solve for x
    x = 311,949,066.24/22,425.60
  6. Step 6: Final answer
    x = 13,910.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.