Home / 40.50-55.85-29.39

Finding the Fourth Proportional to 40.50, 55.85 and 29.39

Calculator

Solution

The fourth proportional to 40.50, 55.85 and 29.39 is: 40.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40.50 : 55.85 = 29.39 : x
  2. Step 2: Convert to fraction form
    40.50/55.85 = 29.39/x
  3. Step 3: Cross multiply
    40.50x = 55.85 × 29.39
  4. Step 4: Simplify right side
    40.50x = 1,641.01
  5. Step 5: Solve for x
    x = 1,641.01/40.50
  6. Step 6: Final answer
    x = 40.52

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.