Home / 21,021-43,824

Finding the Third Proportional to 21,021 and 43,824

Calculator

Solution

The third proportional to 21,021 and 43,824 is: 91,363.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021 : 43,824 = 43,824 : x
  2. Step 2: Convert to fraction form
    21,021/43,824 = 43,824/x
  3. Step 3: Cross multiply
    21,021x = 43,824 × 43,824
  4. Step 4: Simplify right side
    21,021x = 1,920,542,976
  5. Step 5: Solve for x
    x = 1,920,542,976/21,021
  6. Step 6: Final answer
    x = 91,363.06

Related Problems

Find third proportional to 10,510.50 and 21,912
Half scale
Find third proportional to 42,042 and 87,648
Double scale
Find third proportional to 21,023 and 43,828
Similar ratio
Find third proportional to 31,531.50 and 65,736
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.