Home / 20,863-43,451

Finding the Third Proportional to 20,863 and 43,451

Calculator

Solution

The third proportional to 20,863 and 43,451 is: 90,494.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863 : 43,451 = 43,451 : x
  2. Step 2: Convert to fraction form
    20,863/43,451 = 43,451/x
  3. Step 3: Cross multiply
    20,863x = 43,451 × 43,451
  4. Step 4: Simplify right side
    20,863x = 1,887,989,401
  5. Step 5: Solve for x
    x = 1,887,989,401/20,863
  6. Step 6: Final answer
    x = 90,494.63

Related Problems

Find third proportional to 10,431.50 and 21,725.50
Half scale
Find third proportional to 41,726 and 86,902
Double scale
Find third proportional to 20,865 and 43,455
Similar ratio
Find third proportional to 31,294.50 and 65,176.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.