Home / 18,238-39,770

Finding the Third Proportional to 18,238 and 39,770

Calculator

Solution

The third proportional to 18,238 and 39,770 is: 86,722.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238 : 39,770 = 39,770 : x
  2. Step 2: Convert to fraction form
    18,238/39,770 = 39,770/x
  3. Step 3: Cross multiply
    18,238x = 39,770 × 39,770
  4. Step 4: Simplify right side
    18,238x = 1,581,652,900
  5. Step 5: Solve for x
    x = 1,581,652,900/18,238
  6. Step 6: Final answer
    x = 86,722.94

Related Problems

Find third proportional to 9,119 and 19,885
Half scale
Find third proportional to 36,476 and 79,540
Double scale
Find third proportional to 18,240 and 39,774
Similar ratio
Find third proportional to 27,357 and 59,655
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.