Home / 18,605-39,286

Finding the Third Proportional to 18,605 and 39,286

Calculator

Solution

The third proportional to 18,605 and 39,286 is: 82,955.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605 : 39,286 = 39,286 : x
  2. Step 2: Convert to fraction form
    18,605/39,286 = 39,286/x
  3. Step 3: Cross multiply
    18,605x = 39,286 × 39,286
  4. Step 4: Simplify right side
    18,605x = 1,543,389,796
  5. Step 5: Solve for x
    x = 1,543,389,796/18,605
  6. Step 6: Final answer
    x = 82,955.65

Related Problems

Find third proportional to 9,302.50 and 19,643
Half scale
Find third proportional to 37,210 and 78,572
Double scale
Find third proportional to 18,607 and 39,290
Similar ratio
Find third proportional to 27,907.50 and 58,929
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.