Home / 18,103-39,122

Finding the Third Proportional to 18,103 and 39,122

Calculator

Solution

The third proportional to 18,103 and 39,122 is: 84,545.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103 : 39,122 = 39,122 : x
  2. Step 2: Convert to fraction form
    18,103/39,122 = 39,122/x
  3. Step 3: Cross multiply
    18,103x = 39,122 × 39,122
  4. Step 4: Simplify right side
    18,103x = 1,530,530,884
  5. Step 5: Solve for x
    x = 1,530,530,884/18,103
  6. Step 6: Final answer
    x = 84,545.70

Related Problems

Find third proportional to 9,051.50 and 19,561
Half scale
Find third proportional to 36,206 and 78,244
Double scale
Find third proportional to 18,105 and 39,126
Similar ratio
Find third proportional to 27,154.50 and 58,683
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.