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Finding the Fourth Proportional to 17,829.20, 26,692.60 and 10,917.20

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Solution

The fourth proportional to 17,829.20, 26,692.60 and 10,917.20 is: 16,344.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,829.20 : 26,692.60 = 10,917.20 : x
  2. Step 2: Convert to fraction form
    17,829.20/26,692.60 = 10,917.20/x
  3. Step 3: Cross multiply
    17,829.20x = 26,692.60 × 10,917.20
  4. Step 4: Simplify right side
    17,829.20x = 291,408,452.72
  5. Step 5: Solve for x
    x = 291,408,452.72/17,829.20
  6. Step 6: Final answer
    x = 16,344.45

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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.