Home / 18,978-28,752

Finding the Third Proportional to 18,978 and 28,752

Calculator

Solution

The third proportional to 18,978 and 28,752 is: 43,559.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,978 : 28,752 = 28,752 : x
  2. Step 2: Convert to fraction form
    18,978/28,752 = 28,752/x
  3. Step 3: Cross multiply
    18,978x = 28,752 × 28,752
  4. Step 4: Simplify right side
    18,978x = 826,677,504
  5. Step 5: Solve for x
    x = 826,677,504/18,978
  6. Step 6: Final answer
    x = 43,559.78

Related Problems

Find third proportional to 9,489 and 14,376
Half scale
Find third proportional to 37,956 and 57,504
Double scale
Find third proportional to 18,980 and 28,755
Similar ratio
Find third proportional to 28,467 and 43,128
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.