Home / 9,321-20,505

Finding the Third Proportional to 9,321 and 20,505

Calculator

Solution

The third proportional to 9,321 and 20,505 is: 45,108.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321 : 20,505 = 20,505 : x
  2. Step 2: Convert to fraction form
    9,321/20,505 = 20,505/x
  3. Step 3: Cross multiply
    9,321x = 20,505 × 20,505
  4. Step 4: Simplify right side
    9,321x = 420,455,025
  5. Step 5: Solve for x
    x = 420,455,025/9,321
  6. Step 6: Final answer
    x = 45,108.36

Related Problems

Find third proportional to 4,660.50 and 10,252.50
Half scale
Find third proportional to 18,642 and 41,010
Double scale
Find third proportional to 9,323 and 20,509
Similar ratio
Find third proportional to 13,981.50 and 30,757.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.