Home / 15,442-19,740

Finding the Third Proportional to 15,442 and 19,740

Calculator

Solution

The third proportional to 15,442 and 19,740 is: 25,234.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442 : 19,740 = 19,740 : x
  2. Step 2: Convert to fraction form
    15,442/19,740 = 19,740/x
  3. Step 3: Cross multiply
    15,442x = 19,740 × 19,740
  4. Step 4: Simplify right side
    15,442x = 389,667,600
  5. Step 5: Solve for x
    x = 389,667,600/15,442
  6. Step 6: Final answer
    x = 25,234.27

Related Problems

Find third proportional to 7,721 and 9,870
Half scale
Find third proportional to 30,884 and 39,480
Double scale
Find third proportional to 15,444 and 19,743
Similar ratio
Find third proportional to 23,163 and 29,610
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.