Home / 21,860-32,790-5,444

Finding the Fourth Proportional to 21,860, 32,790 and 5,444

Calculator

Solution

The fourth proportional to 21,860, 32,790 and 5,444 is: 8,166

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860 : 32,790 = 5,444 : x
  2. Step 2: Convert to fraction form
    21,860/32,790 = 5,444/x
  3. Step 3: Cross multiply
    21,860x = 32,790 × 5,444
  4. Step 4: Simplify right side
    21,860x = 178,508,760
  5. Step 5: Solve for x
    x = 178,508,760/21,860
  6. Step 6: Final answer
    x = 8,166

Related Problems

Find fourth proportional to 10,930, 16,395 and 2,722
Half scale
Find fourth proportional to 43,720, 65,580 and 10,888
Double scale
Find fourth proportional to 21,861, 32,791.50 and 5,445
Similar ratio
Find fourth proportional to 32,790, 49,185 and 8,166
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.