Home / 20,642-45,238

Finding the Third Proportional to 20,642 and 45,238

Calculator

Solution

The third proportional to 20,642 and 45,238 is: 99,141.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,642 : 45,238 = 45,238 : x
  2. Step 2: Convert to fraction form
    20,642/45,238 = 45,238/x
  3. Step 3: Cross multiply
    20,642x = 45,238 × 45,238
  4. Step 4: Simplify right side
    20,642x = 2,046,476,644
  5. Step 5: Solve for x
    x = 2,046,476,644/20,642
  6. Step 6: Final answer
    x = 99,141.39

Related Problems

Find third proportional to 10,321 and 22,619
Half scale
Find third proportional to 41,284 and 90,476
Double scale
Find third proportional to 20,644 and 45,242
Similar ratio
Find third proportional to 30,963 and 67,857
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.