Home / 20,722-43,364

Finding the Third Proportional to 20,722 and 43,364

Calculator

Solution

The third proportional to 20,722 and 43,364 is: 90,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722 : 43,364 = 43,364 : x
  2. Step 2: Convert to fraction form
    20,722/43,364 = 43,364/x
  3. Step 3: Cross multiply
    20,722x = 43,364 × 43,364
  4. Step 4: Simplify right side
    20,722x = 1,880,436,496
  5. Step 5: Solve for x
    x = 1,880,436,496/20,722
  6. Step 6: Final answer
    x = 90,745.90

Related Problems

Find third proportional to 10,361 and 21,682
Half scale
Find third proportional to 41,444 and 86,728
Double scale
Find third proportional to 20,724 and 43,368
Similar ratio
Find third proportional to 31,083 and 65,046
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.