Home / 21,765-29,365

Finding the Third Proportional to 21,765 and 29,365

Calculator

Solution

The third proportional to 21,765 and 29,365 is: 39,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,765 : 29,365 = 29,365 : x
  2. Step 2: Convert to fraction form
    21,765/29,365 = 29,365/x
  3. Step 3: Cross multiply
    21,765x = 29,365 × 29,365
  4. Step 4: Simplify right side
    21,765x = 862,303,225
  5. Step 5: Solve for x
    x = 862,303,225/21,765
  6. Step 6: Final answer
    x = 39,618.80

Related Problems

Find third proportional to 10,882.50 and 14,682.50
Half scale
Find third proportional to 43,530 and 58,730
Double scale
Find third proportional to 21,767 and 29,368
Similar ratio
Find third proportional to 32,647.50 and 44,047.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.