Home / 20,512-53,432

Finding the Third Proportional to 20,512 and 53,432

Calculator

Solution

The third proportional to 20,512 and 53,432 is: 139,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512 : 53,432 = 53,432 : x
  2. Step 2: Convert to fraction form
    20,512/53,432 = 53,432/x
  3. Step 3: Cross multiply
    20,512x = 53,432 × 53,432
  4. Step 4: Simplify right side
    20,512x = 2,854,978,624
  5. Step 5: Solve for x
    x = 2,854,978,624/20,512
  6. Step 6: Final answer
    x = 139,185.78

Related Problems

Find third proportional to 10,256 and 26,716
Half scale
Find third proportional to 41,024 and 106,864
Double scale
Find third proportional to 20,514 and 53,437
Similar ratio
Find third proportional to 30,768 and 80,148
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.