Home / 13,540.43-20,312.52-4,181.19

Finding the Fourth Proportional to 13,540.43, 20,312.52 and 4,181.19

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Solution

The fourth proportional to 13,540.43, 20,312.52 and 4,181.19 is: 6,272.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.43 : 20,312.52 = 4,181.19 : x
  2. Step 2: Convert to fraction form
    13,540.43/20,312.52 = 4,181.19/x
  3. Step 3: Cross multiply
    13,540.43x = 20,312.52 × 4,181.19
  4. Step 4: Simplify right side
    13,540.43x = 84,930,505.50
  5. Step 5: Solve for x
    x = 84,930,505.50/13,540.43
  6. Step 6: Final answer
    x = 6,272.37

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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.