Home / 31,081.68-42,863.76-20,452.86

Finding the Fourth Proportional to 31,081.68, 42,863.76 and 20,452.86

Calculator

Solution

The fourth proportional to 31,081.68, 42,863.76 and 20,452.86 is: 28,205.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,081.68 : 42,863.76 = 20,452.86 : x
  2. Step 2: Convert to fraction form
    31,081.68/42,863.76 = 20,452.86/x
  3. Step 3: Cross multiply
    31,081.68x = 42,863.76 × 20,452.86
  4. Step 4: Simplify right side
    31,081.68x = 876,686,482.35
  5. Step 5: Solve for x
    x = 876,686,482.35/31,081.68
  6. Step 6: Final answer
    x = 28,205.89

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.