Home / 15,978-34,869

Finding the Third Proportional to 15,978 and 34,869

Calculator

Solution

The third proportional to 15,978 and 34,869 is: 76,095.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,978 : 34,869 = 34,869 : x
  2. Step 2: Convert to fraction form
    15,978/34,869 = 34,869/x
  3. Step 3: Cross multiply
    15,978x = 34,869 × 34,869
  4. Step 4: Simplify right side
    15,978x = 1,215,847,161
  5. Step 5: Solve for x
    x = 1,215,847,161/15,978
  6. Step 6: Final answer
    x = 76,095.08

Related Problems

Find third proportional to 7,989 and 17,434.50
Half scale
Find third proportional to 31,956 and 69,738
Double scale
Find third proportional to 15,980 and 34,873
Similar ratio
Find third proportional to 23,967 and 52,303.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.