Home / 39,340-54,289.20-21,676

Finding the Fourth Proportional to 39,340, 54,289.20 and 21,676

Calculator

Solution

The fourth proportional to 39,340, 54,289.20 and 21,676 is: 29,912.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,340 : 54,289.20 = 21,676 : x
  2. Step 2: Convert to fraction form
    39,340/54,289.20 = 21,676/x
  3. Step 3: Cross multiply
    39,340x = 54,289.20 × 21,676
  4. Step 4: Simplify right side
    39,340x = 1,176,772,699.20
  5. Step 5: Solve for x
    x = 1,176,772,699.20/39,340
  6. Step 6: Final answer
    x = 29,912.88

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.