Home / 28,380-66,286

Finding the Third Proportional to 28,380 and 66,286

Calculator

Solution

The third proportional to 28,380 and 66,286 is: 154,821.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,380 : 66,286 = 66,286 : x
  2. Step 2: Convert to fraction form
    28,380/66,286 = 66,286/x
  3. Step 3: Cross multiply
    28,380x = 66,286 × 66,286
  4. Step 4: Simplify right side
    28,380x = 4,393,833,796
  5. Step 5: Solve for x
    x = 4,393,833,796/28,380
  6. Step 6: Final answer
    x = 154,821.49

Related Problems

Find third proportional to 14,190 and 33,143
Half scale
Find third proportional to 56,760 and 132,572
Double scale
Find third proportional to 28,382 and 66,291
Similar ratio
Find third proportional to 42,570 and 99,429
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.