Home / 25,780-39,210

Finding the Third Proportional to 25,780 and 39,210

Calculator

Solution

The third proportional to 25,780 and 39,210 is: 59,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,780 : 39,210 = 39,210 : x
  2. Step 2: Convert to fraction form
    25,780/39,210 = 39,210/x
  3. Step 3: Cross multiply
    25,780x = 39,210 × 39,210
  4. Step 4: Simplify right side
    25,780x = 1,537,424,100
  5. Step 5: Solve for x
    x = 1,537,424,100/25,780
  6. Step 6: Final answer
    x = 59,636.31

Related Problems

Find third proportional to 12,890 and 19,605
Half scale
Find third proportional to 51,560 and 78,420
Double scale
Find third proportional to 25,782 and 39,213
Similar ratio
Find third proportional to 38,670 and 58,815
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.