Home / 9,027.80-13,531.92-3,181.28

Finding the Fourth Proportional to 9,027.80, 13,531.92 and 3,181.28

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Solution

The fourth proportional to 9,027.80, 13,531.92 and 3,181.28 is: 4,768.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,027.80 : 13,531.92 = 3,181.28 : x
  2. Step 2: Convert to fraction form
    9,027.80/13,531.92 = 3,181.28/x
  3. Step 3: Cross multiply
    9,027.80x = 13,531.92 × 3,181.28
  4. Step 4: Simplify right side
    9,027.80x = 43,048,826.46
  5. Step 5: Solve for x
    x = 43,048,826.46/9,027.80
  6. Step 6: Final answer
    x = 4,768.47

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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.