Home / 15,440-19,737

Finding the Third Proportional to 15,440 and 19,737

Calculator

Solution

The third proportional to 15,440 and 19,737 is: 25,229.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440 : 19,737 = 19,737 : x
  2. Step 2: Convert to fraction form
    15,440/19,737 = 19,737/x
  3. Step 3: Cross multiply
    15,440x = 19,737 × 19,737
  4. Step 4: Simplify right side
    15,440x = 389,549,169
  5. Step 5: Solve for x
    x = 389,549,169/15,440
  6. Step 6: Final answer
    x = 25,229.87

Related Problems

Find third proportional to 7,720 and 9,868.50
Half scale
Find third proportional to 30,880 and 39,474
Double scale
Find third proportional to 15,442 and 19,740
Similar ratio
Find third proportional to 23,160 and 29,605.50
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.