Home / 20,000-41,280

Finding the Third Proportional to 20,000 and 41,280

Calculator

Solution

The third proportional to 20,000 and 41,280 is: 85,201.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000 : 41,280 = 41,280 : x
  2. Step 2: Convert to fraction form
    20,000/41,280 = 41,280/x
  3. Step 3: Cross multiply
    20,000x = 41,280 × 41,280
  4. Step 4: Simplify right side
    20,000x = 1,704,038,400
  5. Step 5: Solve for x
    x = 1,704,038,400/20,000
  6. Step 6: Final answer
    x = 85,201.92

Related Problems

Find third proportional to 10,000 and 20,640
Half scale
Find third proportional to 40,000 and 82,560
Double scale
Find third proportional to 20,002 and 41,284
Similar ratio
Find third proportional to 30,000 and 61,920
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.