Home / 20,978-29,330.50

Finding the Third Proportional to 20,978 and 29,330.50

Calculator

Solution

The third proportional to 20,978 and 29,330.50 is: 41,008.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,978 : 29,330.50 = 29,330.50 : x
  2. Step 2: Convert to fraction form
    20,978/29,330.50 = 29,330.50/x
  3. Step 3: Cross multiply
    20,978x = 29,330.50 × 29,330.50
  4. Step 4: Simplify right side
    20,978x = 860,278,230.25
  5. Step 5: Solve for x
    x = 860,278,230.25/20,978
  6. Step 6: Final answer
    x = 41,008.59

Related Problems

Find third proportional to 10,489 and 14,665.25
Half scale
Find third proportional to 41,956 and 58,661
Double scale
Find third proportional to 20,980 and 29,333
Similar ratio
Find third proportional to 31,467 and 43,995.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.