Home / 25,818-39,939

Finding the Third Proportional to 25,818 and 39,939

Calculator

Solution

The third proportional to 25,818 and 39,939 is: 61,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,818 : 39,939 = 39,939 : x
  2. Step 2: Convert to fraction form
    25,818/39,939 = 39,939/x
  3. Step 3: Cross multiply
    25,818x = 39,939 × 39,939
  4. Step 4: Simplify right side
    25,818x = 1,595,123,721
  5. Step 5: Solve for x
    x = 1,595,123,721/25,818
  6. Step 6: Final answer
    x = 61,783.40

Related Problems

Find third proportional to 12,909 and 19,969.50
Half scale
Find third proportional to 51,636 and 79,878
Double scale
Find third proportional to 25,820 and 39,942
Similar ratio
Find third proportional to 38,727 and 59,908.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.