Home / 43.20-64.80-14.68

Finding the Fourth Proportional to 43.20, 64.80 and 14.68

Calculator

Solution

The fourth proportional to 43.20, 64.80 and 14.68 is: 22.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.20 : 64.80 = 14.68 : x
  2. Step 2: Convert to fraction form
    43.20/64.80 = 14.68/x
  3. Step 3: Cross multiply
    43.20x = 64.80 × 14.68
  4. Step 4: Simplify right side
    43.20x = 951.26
  5. Step 5: Solve for x
    x = 951.26/43.20
  6. Step 6: Final answer
    x = 22.02

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.