Home / 20,785.22-28,684.32-11,354.39

Finding the Fourth Proportional to 20,785.22, 28,684.32 and 11,354.39

Calculator

Solution

The fourth proportional to 20,785.22, 28,684.32 and 11,354.39 is: 15,669.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785.22 : 28,684.32 = 11,354.39 : x
  2. Step 2: Convert to fraction form
    20,785.22/28,684.32 = 11,354.39/x
  3. Step 3: Cross multiply
    20,785.22x = 28,684.32 × 11,354.39
  4. Step 4: Simplify right side
    20,785.22x = 325,692,877.73
  5. Step 5: Solve for x
    x = 325,692,877.73/20,785.22
  6. Step 6: Final answer
    x = 15,669.45

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.