Home / 31,378.31-43,302.38-17,231.46

Finding the Fourth Proportional to 31,378.31, 43,302.38 and 17,231.46

Calculator

Solution

The fourth proportional to 31,378.31, 43,302.38 and 17,231.46 is: 23,779.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.31 : 43,302.38 = 17,231.46 : x
  2. Step 2: Convert to fraction form
    31,378.31/43,302.38 = 17,231.46/x
  3. Step 3: Cross multiply
    31,378.31x = 43,302.38 × 17,231.46
  4. Step 4: Simplify right side
    31,378.31x = 746,163,142.72
  5. Step 5: Solve for x
    x = 746,163,142.72/31,378.31
  6. Step 6: Final answer
    x = 23,779.58

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.