Home / 13,705-20,558

Finding the Third Proportional to 13,705 and 20,558

Calculator

Solution

The third proportional to 13,705 and 20,558 is: 30,837.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705 : 20,558 = 20,558 : x
  2. Step 2: Convert to fraction form
    13,705/20,558 = 20,558/x
  3. Step 3: Cross multiply
    13,705x = 20,558 × 20,558
  4. Step 4: Simplify right side
    13,705x = 422,631,364
  5. Step 5: Solve for x
    x = 422,631,364/13,705
  6. Step 6: Final answer
    x = 30,837.75

Related Problems

Find third proportional to 6,852.50 and 10,279
Half scale
Find third proportional to 27,410 and 41,116
Double scale
Find third proportional to 13,707 and 20,561
Similar ratio
Find third proportional to 20,557.50 and 30,837
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.