Home / 28,956-43,434-8,180.04

Finding the Fourth Proportional to 28,956, 43,434 and 8,180.04

Calculator

Solution

The fourth proportional to 28,956, 43,434 and 8,180.04 is: 12,270.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,956 : 43,434 = 8,180.04 : x
  2. Step 2: Convert to fraction form
    28,956/43,434 = 8,180.04/x
  3. Step 3: Cross multiply
    28,956x = 43,434 × 8,180.04
  4. Step 4: Simplify right side
    28,956x = 355,291,857.36
  5. Step 5: Solve for x
    x = 355,291,857.36/28,956
  6. Step 6: Final answer
    x = 12,270.06

Related Problems

Find fourth proportional to 14,478, 21,717 and 4,090.02
Half scale
Find fourth proportional to 57,912, 86,868 and 16,360.08
Double scale
Find fourth proportional to 28,957, 43,435.50 and 8,181.04
Similar ratio
Find fourth proportional to 43,434, 65,151 and 12,270.06
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.