Home / 13,530-20,851

Finding the Third Proportional to 13,530 and 20,851

Calculator

Solution

The third proportional to 13,530 and 20,851 is: 32,133.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530 : 20,851 = 20,851 : x
  2. Step 2: Convert to fraction form
    13,530/20,851 = 20,851/x
  3. Step 3: Cross multiply
    13,530x = 20,851 × 20,851
  4. Step 4: Simplify right side
    13,530x = 434,764,201
  5. Step 5: Solve for x
    x = 434,764,201/13,530
  6. Step 6: Final answer
    x = 32,133.35

Related Problems

Find third proportional to 6,765 and 10,425.50
Half scale
Find third proportional to 27,060 and 41,702
Double scale
Find third proportional to 13,532 and 20,854
Similar ratio
Find third proportional to 20,295 and 31,276.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.