Home / 20,507-31,626

Finding the Third Proportional to 20,507 and 31,626

Calculator

Solution

The third proportional to 20,507 and 31,626 is: 48,773.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,507 : 31,626 = 31,626 : x
  2. Step 2: Convert to fraction form
    20,507/31,626 = 31,626/x
  3. Step 3: Cross multiply
    20,507x = 31,626 × 31,626
  4. Step 4: Simplify right side
    20,507x = 1,000,203,876
  5. Step 5: Solve for x
    x = 1,000,203,876/20,507
  6. Step 6: Final answer
    x = 48,773.78

Related Problems

Find third proportional to 10,253.50 and 15,813
Half scale
Find third proportional to 41,014 and 63,252
Double scale
Find third proportional to 20,509 and 31,629
Similar ratio
Find third proportional to 30,760.50 and 47,439
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.