Home / 8,986-20,989

Finding the Third Proportional to 8,986 and 20,989

Calculator

Solution

The third proportional to 8,986 and 20,989 is: 49,024.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986 : 20,989 = 20,989 : x
  2. Step 2: Convert to fraction form
    8,986/20,989 = 20,989/x
  3. Step 3: Cross multiply
    8,986x = 20,989 × 20,989
  4. Step 4: Simplify right side
    8,986x = 440,538,121
  5. Step 5: Solve for x
    x = 440,538,121/8,986
  6. Step 6: Final answer
    x = 49,024.94

Related Problems

Find third proportional to 4,493 and 10,494.50
Half scale
Find third proportional to 17,972 and 41,978
Double scale
Find third proportional to 8,988 and 20,994
Similar ratio
Find third proportional to 13,479 and 31,483.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.