Home / 30,480-40,455

Finding the Third Proportional to 30,480 and 40,455

Calculator

Solution

The third proportional to 30,480 and 40,455 is: 53,694.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,480 : 40,455 = 40,455 : x
  2. Step 2: Convert to fraction form
    30,480/40,455 = 40,455/x
  3. Step 3: Cross multiply
    30,480x = 40,455 × 40,455
  4. Step 4: Simplify right side
    30,480x = 1,636,607,025
  5. Step 5: Solve for x
    x = 1,636,607,025/30,480
  6. Step 6: Final answer
    x = 53,694.46

Related Problems

Find third proportional to 15,240 and 20,227.50
Half scale
Find third proportional to 60,960 and 80,910
Double scale
Find third proportional to 30,482 and 40,458
Similar ratio
Find third proportional to 45,720 and 60,682.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.