Home / 19,872-45,712

Finding the Third Proportional to 19,872 and 45,712

Calculator

Solution

The third proportional to 19,872 and 45,712 is: 105,152.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872 : 45,712 = 45,712 : x
  2. Step 2: Convert to fraction form
    19,872/45,712 = 45,712/x
  3. Step 3: Cross multiply
    19,872x = 45,712 × 45,712
  4. Step 4: Simplify right side
    19,872x = 2,089,586,944
  5. Step 5: Solve for x
    x = 2,089,586,944/19,872
  6. Step 6: Final answer
    x = 105,152.32

Related Problems

Find third proportional to 9,936 and 22,856
Half scale
Find third proportional to 39,744 and 91,424
Double scale
Find third proportional to 19,874 and 45,717
Similar ratio
Find third proportional to 29,808 and 68,568
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.