Home / 9,755-20,990

Finding the Third Proportional to 9,755 and 20,990

Calculator

Solution

The third proportional to 9,755 and 20,990 is: 45,164.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,755 : 20,990 = 20,990 : x
  2. Step 2: Convert to fraction form
    9,755/20,990 = 20,990/x
  3. Step 3: Cross multiply
    9,755x = 20,990 × 20,990
  4. Step 4: Simplify right side
    9,755x = 440,580,100
  5. Step 5: Solve for x
    x = 440,580,100/9,755
  6. Step 6: Final answer
    x = 45,164.54

Related Problems

Find third proportional to 4,877.50 and 10,495
Half scale
Find third proportional to 19,510 and 41,980
Double scale
Find third proportional to 9,757 and 20,994
Similar ratio
Find third proportional to 14,632.50 and 31,485
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.