Home / 12,830-27,991

Finding the Third Proportional to 12,830 and 27,991

Calculator

Solution

The third proportional to 12,830 and 27,991 is: 61,067.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,830 : 27,991 = 27,991 : x
  2. Step 2: Convert to fraction form
    12,830/27,991 = 27,991/x
  3. Step 3: Cross multiply
    12,830x = 27,991 × 27,991
  4. Step 4: Simplify right side
    12,830x = 783,496,081
  5. Step 5: Solve for x
    x = 783,496,081/12,830
  6. Step 6: Final answer
    x = 61,067.50

Related Problems

Find third proportional to 6,415 and 13,995.50
Half scale
Find third proportional to 25,660 and 55,982
Double scale
Find third proportional to 12,832 and 27,995
Similar ratio
Find third proportional to 19,245 and 41,986.50
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.