Home / 12,888-20,436

Finding the Third Proportional to 12,888 and 20,436

Calculator

Solution

The third proportional to 12,888 and 20,436 is: 32,404.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888 : 20,436 = 20,436 : x
  2. Step 2: Convert to fraction form
    12,888/20,436 = 20,436/x
  3. Step 3: Cross multiply
    12,888x = 20,436 × 20,436
  4. Step 4: Simplify right side
    12,888x = 417,630,096
  5. Step 5: Solve for x
    x = 417,630,096/12,888
  6. Step 6: Final answer
    x = 32,404.57

Related Problems

Find third proportional to 6,444 and 10,218
Half scale
Find third proportional to 25,776 and 40,872
Double scale
Find third proportional to 12,890 and 20,439
Similar ratio
Find third proportional to 19,332 and 30,654
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.