Home / 13,316-20,378

Finding the Third Proportional to 13,316 and 20,378

Calculator

Solution

The third proportional to 13,316 and 20,378 is: 31,185.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316 : 20,378 = 20,378 : x
  2. Step 2: Convert to fraction form
    13,316/20,378 = 20,378/x
  3. Step 3: Cross multiply
    13,316x = 20,378 × 20,378
  4. Step 4: Simplify right side
    13,316x = 415,262,884
  5. Step 5: Solve for x
    x = 415,262,884/13,316
  6. Step 6: Final answer
    x = 31,185.26

Related Problems

Find third proportional to 6,658 and 10,189
Half scale
Find third proportional to 26,632 and 40,756
Double scale
Find third proportional to 13,318 and 20,381
Similar ratio
Find third proportional to 19,974 and 30,567
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.