Home / 17,120.82-23,619.68-10,405.38

Finding the Fourth Proportional to 17,120.82, 23,619.68 and 10,405.38

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Solution

The fourth proportional to 17,120.82, 23,619.68 and 10,405.38 is: 14,355.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120.82 : 23,619.68 = 10,405.38 : x
  2. Step 2: Convert to fraction form
    17,120.82/23,619.68 = 10,405.38/x
  3. Step 3: Cross multiply
    17,120.82x = 23,619.68 × 10,405.38
  4. Step 4: Simplify right side
    17,120.82x = 245,771,745.88
  5. Step 5: Solve for x
    x = 245,771,745.88/17,120.82
  6. Step 6: Final answer
    x = 14,355.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.