Home / 31,218-40,432

Finding the Third Proportional to 31,218 and 40,432

Calculator

Solution

The third proportional to 31,218 and 40,432 is: 52,365.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,218 : 40,432 = 40,432 : x
  2. Step 2: Convert to fraction form
    31,218/40,432 = 40,432/x
  3. Step 3: Cross multiply
    31,218x = 40,432 × 40,432
  4. Step 4: Simplify right side
    31,218x = 1,634,746,624
  5. Step 5: Solve for x
    x = 1,634,746,624/31,218
  6. Step 6: Final answer
    x = 52,365.51

Related Problems

Find third proportional to 15,609 and 20,216
Half scale
Find third proportional to 62,436 and 80,864
Double scale
Find third proportional to 31,220 and 40,435
Similar ratio
Find third proportional to 46,827 and 60,648
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.