Home / 20,475-43,136

Finding the Third Proportional to 20,475 and 43,136

Calculator

Solution

The third proportional to 20,475 and 43,136 is: 90,877.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,475 : 43,136 = 43,136 : x
  2. Step 2: Convert to fraction form
    20,475/43,136 = 43,136/x
  3. Step 3: Cross multiply
    20,475x = 43,136 × 43,136
  4. Step 4: Simplify right side
    20,475x = 1,860,714,496
  5. Step 5: Solve for x
    x = 1,860,714,496/20,475
  6. Step 6: Final answer
    x = 90,877.39

Related Problems

Find third proportional to 10,237.50 and 21,568
Half scale
Find third proportional to 40,950 and 86,272
Double scale
Find third proportional to 20,477 and 43,140
Similar ratio
Find third proportional to 30,712.50 and 64,704
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.