Home / 18,036-39,115

Finding the Third Proportional to 18,036 and 39,115

Calculator

Solution

The third proportional to 18,036 and 39,115 is: 84,829.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,036 : 39,115 = 39,115 : x
  2. Step 2: Convert to fraction form
    18,036/39,115 = 39,115/x
  3. Step 3: Cross multiply
    18,036x = 39,115 × 39,115
  4. Step 4: Simplify right side
    18,036x = 1,529,983,225
  5. Step 5: Solve for x
    x = 1,529,983,225/18,036
  6. Step 6: Final answer
    x = 84,829.41

Related Problems

Find third proportional to 9,018 and 19,557.50
Half scale
Find third proportional to 36,072 and 78,230
Double scale
Find third proportional to 18,038 and 39,119
Similar ratio
Find third proportional to 27,054 and 58,672.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.