Home / 31.39-47.11-16.19

Finding the Fourth Proportional to 31.39, 47.11 and 16.19

Calculator

Solution

The fourth proportional to 31.39, 47.11 and 16.19 is: 24.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.39 : 47.11 = 16.19 : x
  2. Step 2: Convert to fraction form
    31.39/47.11 = 16.19/x
  3. Step 3: Cross multiply
    31.39x = 47.11 × 16.19
  4. Step 4: Simplify right side
    31.39x = 762.71
  5. Step 5: Solve for x
    x = 762.71/31.39
  6. Step 6: Final answer
    x = 24.30

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.