Home / 19,530-21,717

Finding the Third Proportional to 19,530 and 21,717

Calculator

Solution

The third proportional to 19,530 and 21,717 is: 24,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530 : 21,717 = 21,717 : x
  2. Step 2: Convert to fraction form
    19,530/21,717 = 21,717/x
  3. Step 3: Cross multiply
    19,530x = 21,717 × 21,717
  4. Step 4: Simplify right side
    19,530x = 471,628,089
  5. Step 5: Solve for x
    x = 471,628,089/19,530
  6. Step 6: Final answer
    x = 24,148.90

Related Problems

Find third proportional to 9,765 and 10,858.50
Half scale
Find third proportional to 39,060 and 43,434
Double scale
Find third proportional to 19,532 and 21,719
Similar ratio
Find third proportional to 29,295 and 32,575.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.