Home / 20,910-45,018

Finding the Third Proportional to 20,910 and 45,018

Calculator

Solution

The third proportional to 20,910 and 45,018 is: 96,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,910 : 45,018 = 45,018 : x
  2. Step 2: Convert to fraction form
    20,910/45,018 = 45,018/x
  3. Step 3: Cross multiply
    20,910x = 45,018 × 45,018
  4. Step 4: Simplify right side
    20,910x = 2,026,620,324
  5. Step 5: Solve for x
    x = 2,026,620,324/20,910
  6. Step 6: Final answer
    x = 96,921.11

Related Problems

Find third proportional to 10,455 and 22,509
Half scale
Find third proportional to 41,820 and 90,036
Double scale
Find third proportional to 20,912 and 45,022
Similar ratio
Find third proportional to 31,365 and 67,527
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.