Home / 13,042.20-19,563.32-3,181.43

Finding the Fourth Proportional to 13,042.20, 19,563.32 and 3,181.43

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Solution

The fourth proportional to 13,042.20, 19,563.32 and 3,181.43 is: 4,772.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.20 : 19,563.32 = 3,181.43 : x
  2. Step 2: Convert to fraction form
    13,042.20/19,563.32 = 3,181.43/x
  3. Step 3: Cross multiply
    13,042.20x = 19,563.32 × 3,181.43
  4. Step 4: Simplify right side
    13,042.20x = 62,239,219.42
  5. Step 5: Solve for x
    x = 62,239,219.42/13,042.20
  6. Step 6: Final answer
    x = 4,772.14

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Why These Related Problems?

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