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Finding the Fourth Proportional to 22,276.80, 33,415.20 and 14,403.60

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Solution

The fourth proportional to 22,276.80, 33,415.20 and 14,403.60 is: 21,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,276.80 : 33,415.20 = 14,403.60 : x
  2. Step 2: Convert to fraction form
    22,276.80/33,415.20 = 14,403.60/x
  3. Step 3: Cross multiply
    22,276.80x = 33,415.20 × 14,403.60
  4. Step 4: Simplify right side
    22,276.80x = 481,299,174.72
  5. Step 5: Solve for x
    x = 481,299,174.72/22,276.80
  6. Step 6: Final answer
    x = 21,605.40

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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.