Home / 8,918-20,650

Finding the Third Proportional to 8,918 and 20,650

Calculator

Solution

The third proportional to 8,918 and 20,650 is: 47,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918 : 20,650 = 20,650 : x
  2. Step 2: Convert to fraction form
    8,918/20,650 = 20,650/x
  3. Step 3: Cross multiply
    8,918x = 20,650 × 20,650
  4. Step 4: Simplify right side
    8,918x = 426,422,500
  5. Step 5: Solve for x
    x = 426,422,500/8,918
  6. Step 6: Final answer
    x = 47,815.93

Related Problems

Find third proportional to 4,459 and 10,325
Half scale
Find third proportional to 17,836 and 41,300
Double scale
Find third proportional to 8,920 and 20,655
Similar ratio
Find third proportional to 13,377 and 30,975
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.