Home / 18,180-38,538

Finding the Third Proportional to 18,180 and 38,538

Calculator

Solution

The third proportional to 18,180 and 38,538 is: 81,692.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180 : 38,538 = 38,538 : x
  2. Step 2: Convert to fraction form
    18,180/38,538 = 38,538/x
  3. Step 3: Cross multiply
    18,180x = 38,538 × 38,538
  4. Step 4: Simplify right side
    18,180x = 1,485,177,444
  5. Step 5: Solve for x
    x = 1,485,177,444/18,180
  6. Step 6: Final answer
    x = 81,692.93

Related Problems

Find third proportional to 9,090 and 19,269
Half scale
Find third proportional to 36,360 and 77,076
Double scale
Find third proportional to 18,182 and 38,542
Similar ratio
Find third proportional to 27,270 and 57,807
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.