Home / 20,215-43,990

Finding the Third Proportional to 20,215 and 43,990

Calculator

Solution

The third proportional to 20,215 and 43,990 is: 95,726.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215 : 43,990 = 43,990 : x
  2. Step 2: Convert to fraction form
    20,215/43,990 = 43,990/x
  3. Step 3: Cross multiply
    20,215x = 43,990 × 43,990
  4. Step 4: Simplify right side
    20,215x = 1,935,120,100
  5. Step 5: Solve for x
    x = 1,935,120,100/20,215
  6. Step 6: Final answer
    x = 95,726.94

Related Problems

Find third proportional to 10,107.50 and 21,995
Half scale
Find third proportional to 40,430 and 87,980
Double scale
Find third proportional to 20,217 and 43,994
Similar ratio
Find third proportional to 30,322.50 and 65,985
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.