Home / 21.36-29.41-18.93

Finding the Fourth Proportional to 21.36, 29.41 and 18.93

Calculator

Solution

The fourth proportional to 21.36, 29.41 and 18.93 is: 26.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21.36 : 29.41 = 18.93 : x
  2. Step 2: Convert to fraction form
    21.36/29.41 = 18.93/x
  3. Step 3: Cross multiply
    21.36x = 29.41 × 18.93
  4. Step 4: Simplify right side
    21.36x = 556.73
  5. Step 5: Solve for x
    x = 556.73/21.36
  6. Step 6: Final answer
    x = 26.06

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.