Home / 20,660-45,171

Finding the Third Proportional to 20,660 and 45,171

Calculator

Solution

The third proportional to 20,660 and 45,171 is: 98,761.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,660 : 45,171 = 45,171 : x
  2. Step 2: Convert to fraction form
    20,660/45,171 = 45,171/x
  3. Step 3: Cross multiply
    20,660x = 45,171 × 45,171
  4. Step 4: Simplify right side
    20,660x = 2,040,419,241
  5. Step 5: Solve for x
    x = 2,040,419,241/20,660
  6. Step 6: Final answer
    x = 98,761.82

Related Problems

Find third proportional to 10,330 and 22,585.50
Half scale
Find third proportional to 41,320 and 90,342
Double scale
Find third proportional to 20,662 and 45,175
Similar ratio
Find third proportional to 30,990 and 67,756.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.