Home / 8,919-20,651

Finding the Third Proportional to 8,919 and 20,651

Calculator

Solution

The third proportional to 8,919 and 20,651 is: 47,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919 : 20,651 = 20,651 : x
  2. Step 2: Convert to fraction form
    8,919/20,651 = 20,651/x
  3. Step 3: Cross multiply
    8,919x = 20,651 × 20,651
  4. Step 4: Simplify right side
    8,919x = 426,463,801
  5. Step 5: Solve for x
    x = 426,463,801/8,919
  6. Step 6: Final answer
    x = 47,815.20

Related Problems

Find third proportional to 4,459.50 and 10,325.50
Half scale
Find third proportional to 17,838 and 41,302
Double scale
Find third proportional to 8,921 and 20,656
Similar ratio
Find third proportional to 13,378.50 and 30,976.50
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.