Home / 13,328-20,728

Finding the Third Proportional to 13,328 and 20,728

Calculator

Solution

The third proportional to 13,328 and 20,728 is: 32,236.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328 : 20,728 = 20,728 : x
  2. Step 2: Convert to fraction form
    13,328/20,728 = 20,728/x
  3. Step 3: Cross multiply
    13,328x = 20,728 × 20,728
  4. Step 4: Simplify right side
    13,328x = 429,649,984
  5. Step 5: Solve for x
    x = 429,649,984/13,328
  6. Step 6: Final answer
    x = 32,236.64

Related Problems

Find third proportional to 6,664 and 10,364
Half scale
Find third proportional to 26,656 and 41,456
Double scale
Find third proportional to 13,330 and 20,731
Similar ratio
Find third proportional to 19,992 and 31,092
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.