Home / 18,978-28,734

Finding the Third Proportional to 18,978 and 28,734

Calculator

Solution

The third proportional to 18,978 and 28,734 is: 43,505.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,978 : 28,734 = 28,734 : x
  2. Step 2: Convert to fraction form
    18,978/28,734 = 28,734/x
  3. Step 3: Cross multiply
    18,978x = 28,734 × 28,734
  4. Step 4: Simplify right side
    18,978x = 825,642,756
  5. Step 5: Solve for x
    x = 825,642,756/18,978
  6. Step 6: Final answer
    x = 43,505.26

Related Problems

Find third proportional to 9,489 and 14,367
Half scale
Find third proportional to 37,956 and 57,468
Double scale
Find third proportional to 18,980 and 28,737
Similar ratio
Find third proportional to 28,467 and 43,101
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.