Home / 20,429.41-30,645.12-5,638

Finding the Fourth Proportional to 20,429.41, 30,645.12 and 5,638

Calculator

Solution

The fourth proportional to 20,429.41, 30,645.12 and 5,638 is: 8,457.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,429.41 : 30,645.12 = 5,638 : x
  2. Step 2: Convert to fraction form
    20,429.41/30,645.12 = 5,638/x
  3. Step 3: Cross multiply
    20,429.41x = 30,645.12 × 5,638
  4. Step 4: Simplify right side
    20,429.41x = 172,777,186.56
  5. Step 5: Solve for x
    x = 172,777,186.56/20,429.41
  6. Step 6: Final answer
    x = 8,457.28

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.