Home / 14,129-20,686

Finding the Third Proportional to 14,129 and 20,686

Calculator

Solution

The third proportional to 14,129 and 20,686 is: 30,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129 : 20,686 = 20,686 : x
  2. Step 2: Convert to fraction form
    14,129/20,686 = 20,686/x
  3. Step 3: Cross multiply
    14,129x = 20,686 × 20,686
  4. Step 4: Simplify right side
    14,129x = 427,910,596
  5. Step 5: Solve for x
    x = 427,910,596/14,129
  6. Step 6: Final answer
    x = 30,285.98

Related Problems

Find third proportional to 7,064.50 and 10,343
Half scale
Find third proportional to 28,258 and 41,372
Double scale
Find third proportional to 14,131 and 20,689
Similar ratio
Find third proportional to 21,193.50 and 31,029
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.