Home / 18,515-27,777

Finding the Third Proportional to 18,515 and 27,777

Calculator

Solution

The third proportional to 18,515 and 27,777 is: 41,672.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515 : 27,777 = 27,777 : x
  2. Step 2: Convert to fraction form
    18,515/27,777 = 27,777/x
  3. Step 3: Cross multiply
    18,515x = 27,777 × 27,777
  4. Step 4: Simplify right side
    18,515x = 771,561,729
  5. Step 5: Solve for x
    x = 771,561,729/18,515
  6. Step 6: Final answer
    x = 41,672.25

Related Problems

Find third proportional to 9,257.50 and 13,888.50
Half scale
Find third proportional to 37,030 and 55,554
Double scale
Find third proportional to 18,517 and 27,780
Similar ratio
Find third proportional to 27,772.50 and 41,665.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.