Home / 27,831-42,777

Finding the Third Proportional to 27,831 and 42,777

Calculator

Solution

The third proportional to 27,831 and 42,777 is: 65,749.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,831 : 42,777 = 42,777 : x
  2. Step 2: Convert to fraction form
    27,831/42,777 = 42,777/x
  3. Step 3: Cross multiply
    27,831x = 42,777 × 42,777
  4. Step 4: Simplify right side
    27,831x = 1,829,871,729
  5. Step 5: Solve for x
    x = 1,829,871,729/27,831
  6. Step 6: Final answer
    x = 65,749.41

Related Problems

Find third proportional to 13,915.50 and 21,388.50
Half scale
Find third proportional to 55,662 and 85,554
Double scale
Find third proportional to 27,833 and 42,780
Similar ratio
Find third proportional to 41,746.50 and 64,165.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.