Home / 18,821-27,655

Finding the Third Proportional to 18,821 and 27,655

Calculator

Solution

The third proportional to 18,821 and 27,655 is: 40,635.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821 : 27,655 = 27,655 : x
  2. Step 2: Convert to fraction form
    18,821/27,655 = 27,655/x
  3. Step 3: Cross multiply
    18,821x = 27,655 × 27,655
  4. Step 4: Simplify right side
    18,821x = 764,799,025
  5. Step 5: Solve for x
    x = 764,799,025/18,821
  6. Step 6: Final answer
    x = 40,635.41

Related Problems

Find third proportional to 9,410.50 and 13,827.50
Half scale
Find third proportional to 37,642 and 55,310
Double scale
Find third proportional to 18,823 and 27,658
Similar ratio
Find third proportional to 28,231.50 and 41,482.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.