Home / 25,428-39,691

Finding the Third Proportional to 25,428 and 39,691

Calculator

Solution

The third proportional to 25,428 and 39,691 is: 61,954.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,428 : 39,691 = 39,691 : x
  2. Step 2: Convert to fraction form
    25,428/39,691 = 39,691/x
  3. Step 3: Cross multiply
    25,428x = 39,691 × 39,691
  4. Step 4: Simplify right side
    25,428x = 1,575,375,481
  5. Step 5: Solve for x
    x = 1,575,375,481/25,428
  6. Step 6: Final answer
    x = 61,954.36

Related Problems

Find third proportional to 12,714 and 19,845.50
Half scale
Find third proportional to 50,856 and 79,382
Double scale
Find third proportional to 25,430 and 39,694
Similar ratio
Find third proportional to 38,142 and 59,536.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.