Home / 38.95-58.46-31.43

Finding the Fourth Proportional to 38.95, 58.46 and 31.43

Calculator

Solution

The fourth proportional to 38.95, 58.46 and 31.43 is: 47.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.95 : 58.46 = 31.43 : x
  2. Step 2: Convert to fraction form
    38.95/58.46 = 31.43/x
  3. Step 3: Cross multiply
    38.95x = 58.46 × 31.43
  4. Step 4: Simplify right side
    38.95x = 1,837.39
  5. Step 5: Solve for x
    x = 1,837.39/38.95
  6. Step 6: Final answer
    x = 47.18

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.