Home / 30,511.62-45,758.60-9,163.48

Finding the Fourth Proportional to 30,511.62, 45,758.60 and 9,163.48

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Solution

The fourth proportional to 30,511.62, 45,758.60 and 9,163.48 is: 13,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,511.62 : 45,758.60 = 9,163.48 : x
  2. Step 2: Convert to fraction form
    30,511.62/45,758.60 = 9,163.48/x
  3. Step 3: Cross multiply
    30,511.62x = 45,758.60 × 9,163.48
  4. Step 4: Simplify right side
    30,511.62x = 419,307,741.32
  5. Step 5: Solve for x
    x = 419,307,741.32/30,511.62
  6. Step 6: Final answer
    x = 13,742.56

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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.