Home / 12,620-20,307

Finding the Third Proportional to 12,620 and 20,307

Calculator

Solution

The third proportional to 12,620 and 20,307 is: 32,676.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620 : 20,307 = 20,307 : x
  2. Step 2: Convert to fraction form
    12,620/20,307 = 20,307/x
  3. Step 3: Cross multiply
    12,620x = 20,307 × 20,307
  4. Step 4: Simplify right side
    12,620x = 412,374,249
  5. Step 5: Solve for x
    x = 412,374,249/12,620
  6. Step 6: Final answer
    x = 32,676.25

Related Problems

Find third proportional to 6,310 and 10,153.50
Half scale
Find third proportional to 25,240 and 40,614
Double scale
Find third proportional to 12,622 and 20,310
Similar ratio
Find third proportional to 18,930 and 30,460.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.