Home / 18,090-38,907

Finding the Third Proportional to 18,090 and 38,907

Calculator

Solution

The third proportional to 18,090 and 38,907 is: 83,679.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090 : 38,907 = 38,907 : x
  2. Step 2: Convert to fraction form
    18,090/38,907 = 38,907/x
  3. Step 3: Cross multiply
    18,090x = 38,907 × 38,907
  4. Step 4: Simplify right side
    18,090x = 1,513,754,649
  5. Step 5: Solve for x
    x = 1,513,754,649/18,090
  6. Step 6: Final answer
    x = 83,679.09

Related Problems

Find third proportional to 9,045 and 19,453.50
Half scale
Find third proportional to 36,180 and 77,814
Double scale
Find third proportional to 18,092 and 38,911
Similar ratio
Find third proportional to 27,135 and 58,360.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.