Home / 17,804-20,918

Finding the Third Proportional to 17,804 and 20,918

Calculator

Solution

The third proportional to 17,804 and 20,918 is: 24,576.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,804 : 20,918 = 20,918 : x
  2. Step 2: Convert to fraction form
    17,804/20,918 = 20,918/x
  3. Step 3: Cross multiply
    17,804x = 20,918 × 20,918
  4. Step 4: Simplify right side
    17,804x = 437,562,724
  5. Step 5: Solve for x
    x = 437,562,724/17,804
  6. Step 6: Final answer
    x = 24,576.65

Related Problems

Find third proportional to 8,902 and 10,459
Half scale
Find third proportional to 35,608 and 41,836
Double scale
Find third proportional to 17,806 and 20,920
Similar ratio
Find third proportional to 26,706 and 31,377
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.