Home / 31.70-47.43-29.57

Finding the Fourth Proportional to 31.70, 47.43 and 29.57

Calculator

Solution

The fourth proportional to 31.70, 47.43 and 29.57 is: 44.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.70 : 47.43 = 29.57 : x
  2. Step 2: Convert to fraction form
    31.70/47.43 = 29.57/x
  3. Step 3: Cross multiply
    31.70x = 47.43 × 29.57
  4. Step 4: Simplify right side
    31.70x = 1,402.27
  5. Step 5: Solve for x
    x = 1,402.27/31.70
  6. Step 6: Final answer
    x = 44.24

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.