Home / 8,939-20,157

Finding the Third Proportional to 8,939 and 20,157

Calculator

Solution

The third proportional to 8,939 and 20,157 is: 45,453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939 : 20,157 = 20,157 : x
  2. Step 2: Convert to fraction form
    8,939/20,157 = 20,157/x
  3. Step 3: Cross multiply
    8,939x = 20,157 × 20,157
  4. Step 4: Simplify right side
    8,939x = 406,304,649
  5. Step 5: Solve for x
    x = 406,304,649/8,939
  6. Step 6: Final answer
    x = 45,453.03

Related Problems

Find third proportional to 4,469.50 and 10,078.50
Half scale
Find third proportional to 17,878 and 40,314
Double scale
Find third proportional to 8,941 and 20,162
Similar ratio
Find third proportional to 13,408.50 and 30,235.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.