Home / 8,695-20,510

Finding the Third Proportional to 8,695 and 20,510

Calculator

Solution

The third proportional to 8,695 and 20,510 is: 48,379.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695 : 20,510 = 20,510 : x
  2. Step 2: Convert to fraction form
    8,695/20,510 = 20,510/x
  3. Step 3: Cross multiply
    8,695x = 20,510 × 20,510
  4. Step 4: Simplify right side
    8,695x = 420,660,100
  5. Step 5: Solve for x
    x = 420,660,100/8,695
  6. Step 6: Final answer
    x = 48,379.54

Related Problems

Find third proportional to 4,347.50 and 10,255
Half scale
Find third proportional to 17,390 and 41,020
Double scale
Find third proportional to 8,697 and 20,515
Similar ratio
Find third proportional to 13,042.50 and 30,765
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.