Home / 30,728-65,808

Finding the Third Proportional to 30,728 and 65,808

Calculator

Solution

The third proportional to 30,728 and 65,808 is: 140,936.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,728 : 65,808 = 65,808 : x
  2. Step 2: Convert to fraction form
    30,728/65,808 = 65,808/x
  3. Step 3: Cross multiply
    30,728x = 65,808 × 65,808
  4. Step 4: Simplify right side
    30,728x = 4,330,692,864
  5. Step 5: Solve for x
    x = 4,330,692,864/30,728
  6. Step 6: Final answer
    x = 140,936.37

Related Problems

Find third proportional to 15,364 and 32,904
Half scale
Find third proportional to 61,456 and 131,616
Double scale
Find third proportional to 30,730 and 65,812
Similar ratio
Find third proportional to 46,092 and 98,712
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.