Home / 13,940-20,670

Finding the Third Proportional to 13,940 and 20,670

Calculator

Solution

The third proportional to 13,940 and 20,670 is: 30,649.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940 : 20,670 = 20,670 : x
  2. Step 2: Convert to fraction form
    13,940/20,670 = 20,670/x
  3. Step 3: Cross multiply
    13,940x = 20,670 × 20,670
  4. Step 4: Simplify right side
    13,940x = 427,248,900
  5. Step 5: Solve for x
    x = 427,248,900/13,940
  6. Step 6: Final answer
    x = 30,649.13

Related Problems

Find third proportional to 6,970 and 10,335
Half scale
Find third proportional to 27,880 and 41,340
Double scale
Find third proportional to 13,942 and 20,673
Similar ratio
Find third proportional to 20,910 and 31,005
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.