Home / 27,807-43,121

Finding the Third Proportional to 27,807 and 43,121

Calculator

Solution

The third proportional to 27,807 and 43,121 is: 66,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807 : 43,121 = 43,121 : x
  2. Step 2: Convert to fraction form
    27,807/43,121 = 43,121/x
  3. Step 3: Cross multiply
    27,807x = 43,121 × 43,121
  4. Step 4: Simplify right side
    27,807x = 1,859,420,641
  5. Step 5: Solve for x
    x = 1,859,420,641/27,807
  6. Step 6: Final answer
    x = 66,868.80

Related Problems

Find third proportional to 13,903.50 and 21,560.50
Half scale
Find third proportional to 55,614 and 86,242
Double scale
Find third proportional to 27,809 and 43,124
Similar ratio
Find third proportional to 41,710.50 and 64,681.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.