Home / 25.11-34.65-19.66

Finding the Fourth Proportional to 25.11, 34.65 and 19.66

Calculator

Solution

The fourth proportional to 25.11, 34.65 and 19.66 is: 27.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.11 : 34.65 = 19.66 : x
  2. Step 2: Convert to fraction form
    25.11/34.65 = 19.66/x
  3. Step 3: Cross multiply
    25.11x = 34.65 × 19.66
  4. Step 4: Simplify right side
    25.11x = 681.22
  5. Step 5: Solve for x
    x = 681.22/25.11
  6. Step 6: Final answer
    x = 27.13

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.