Home / 35.68-49.23-21.12

Finding the Fourth Proportional to 35.68, 49.23 and 21.12

Calculator

Solution

The fourth proportional to 35.68, 49.23 and 21.12 is: 29.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.68 : 49.23 = 21.12 : x
  2. Step 2: Convert to fraction form
    35.68/49.23 = 21.12/x
  3. Step 3: Cross multiply
    35.68x = 49.23 × 21.12
  4. Step 4: Simplify right side
    35.68x = 1,039.74
  5. Step 5: Solve for x
    x = 1,039.74/35.68
  6. Step 6: Final answer
    x = 29.14

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.