Home / 20,610.82-30,912.64-9,516.56

Finding the Fourth Proportional to 20,610.82, 30,912.64 and 9,516.56

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Solution

The fourth proportional to 20,610.82, 30,912.64 and 9,516.56 is: 14,273.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.82 : 30,912.64 = 9,516.56 : x
  2. Step 2: Convert to fraction form
    20,610.82/30,912.64 = 9,516.56/x
  3. Step 3: Cross multiply
    20,610.82x = 30,912.64 × 9,516.56
  4. Step 4: Simplify right side
    20,610.82x = 294,181,993.32
  5. Step 5: Solve for x
    x = 294,181,993.32/20,610.82
  6. Step 6: Final answer
    x = 14,273.18

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1.5x scale

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.