Home / 38,430-57,645

Finding the Third Proportional to 38,430 and 57,645

Calculator

Solution

The third proportional to 38,430 and 57,645 is: 86,467.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,430 : 57,645 = 57,645 : x
  2. Step 2: Convert to fraction form
    38,430/57,645 = 57,645/x
  3. Step 3: Cross multiply
    38,430x = 57,645 × 57,645
  4. Step 4: Simplify right side
    38,430x = 3,322,946,025
  5. Step 5: Solve for x
    x = 3,322,946,025/38,430
  6. Step 6: Final answer
    x = 86,467.50

Related Problems

Find third proportional to 19,215 and 28,822.50
Half scale
Find third proportional to 76,860 and 115,290
Double scale
Find third proportional to 38,432 and 57,648
Similar ratio
Find third proportional to 57,645 and 86,467.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.