Home / 20,512-28,260

Finding the Third Proportional to 20,512 and 28,260

Calculator

Solution

The third proportional to 20,512 and 28,260 is: 38,934.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512 : 28,260 = 28,260 : x
  2. Step 2: Convert to fraction form
    20,512/28,260 = 28,260/x
  3. Step 3: Cross multiply
    20,512x = 28,260 × 28,260
  4. Step 4: Simplify right side
    20,512x = 798,627,600
  5. Step 5: Solve for x
    x = 798,627,600/20,512
  6. Step 6: Final answer
    x = 38,934.65

Related Problems

Find third proportional to 10,256 and 14,130
Half scale
Find third proportional to 41,024 and 56,520
Double scale
Find third proportional to 20,514 and 28,263
Similar ratio
Find third proportional to 30,768 and 42,390
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.