Home / 53.30-79.90-22.86

Finding the Fourth Proportional to 53.30, 79.90 and 22.86

Calculator

Solution

The fourth proportional to 53.30, 79.90 and 22.86 is: 34.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53.30 : 79.90 = 22.86 : x
  2. Step 2: Convert to fraction form
    53.30/79.90 = 22.86/x
  3. Step 3: Cross multiply
    53.30x = 79.90 × 22.86
  4. Step 4: Simplify right side
    53.30x = 1,826.46
  5. Step 5: Solve for x
    x = 1,826.46/53.30
  6. Step 6: Final answer
    x = 34.27

Related Problems

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.