Home / 41.16-56.72-28.20

Finding the Fourth Proportional to 41.16, 56.72 and 28.20

Calculator

Solution

The fourth proportional to 41.16, 56.72 and 28.20 is: 38.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.16 : 56.72 = 28.20 : x
  2. Step 2: Convert to fraction form
    41.16/56.72 = 28.20/x
  3. Step 3: Cross multiply
    41.16x = 56.72 × 28.20
  4. Step 4: Simplify right side
    41.16x = 1,599.50
  5. Step 5: Solve for x
    x = 1,599.50/41.16
  6. Step 6: Final answer
    x = 38.86

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.