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Finding the Fourth Proportional to 19,363.20, 29,012.40 and 9,481.20

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Solution

The fourth proportional to 19,363.20, 29,012.40 and 9,481.20 is: 14,205.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,363.20 : 29,012.40 = 9,481.20 : x
  2. Step 2: Convert to fraction form
    19,363.20/29,012.40 = 9,481.20/x
  3. Step 3: Cross multiply
    19,363.20x = 29,012.40 × 9,481.20
  4. Step 4: Simplify right side
    19,363.20x = 275,072,366.88
  5. Step 5: Solve for x
    x = 275,072,366.88/19,363.20
  6. Step 6: Final answer
    x = 14,205.94

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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.