Home / 13,388-20,808

Finding the Third Proportional to 13,388 and 20,808

Calculator

Solution

The third proportional to 13,388 and 20,808 is: 32,340.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388 : 20,808 = 20,808 : x
  2. Step 2: Convert to fraction form
    13,388/20,808 = 20,808/x
  3. Step 3: Cross multiply
    13,388x = 20,808 × 20,808
  4. Step 4: Simplify right side
    13,388x = 432,972,864
  5. Step 5: Solve for x
    x = 432,972,864/13,388
  6. Step 6: Final answer
    x = 32,340.37

Related Problems

Find third proportional to 6,694 and 10,404
Half scale
Find third proportional to 26,776 and 41,616
Double scale
Find third proportional to 13,390 and 20,811
Similar ratio
Find third proportional to 20,082 and 31,212
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.