Home / 19,912.50-27,918

Finding the Third Proportional to 19,912.50 and 27,918

Calculator

Solution

The third proportional to 19,912.50 and 27,918 is: 39,141.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.50 : 27,918 = 27,918 : x
  2. Step 2: Convert to fraction form
    19,912.50/27,918 = 27,918/x
  3. Step 3: Cross multiply
    19,912.50x = 27,918 × 27,918
  4. Step 4: Simplify right side
    19,912.50x = 779,414,724
  5. Step 5: Solve for x
    x = 779,414,724/19,912.50
  6. Step 6: Final answer
    x = 39,141.98

Related Problems

Find third proportional to 9,956.25 and 13,959
Half scale
Find third proportional to 39,825 and 55,836
Double scale
Find third proportional to 19,915 and 27,921
Similar ratio
Find third proportional to 29,868.75 and 41,877
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.