Home / 39.38-82.69

Finding the Third Proportional to 39.38 and 82.69

Calculator

Solution

The third proportional to 39.38 and 82.69 is: 173.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39.38 : 82.69 = 82.69 : x
  2. Step 2: Convert to fraction form
    39.38/82.69 = 82.69/x
  3. Step 3: Cross multiply
    39.38x = 82.69 × 82.69
  4. Step 4: Simplify right side
    39.38x = 6,837.22
  5. Step 5: Solve for x
    x = 6,837.22/39.38
  6. Step 6: Final answer
    x = 173.64

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.