Home / 20,175.20-30,287.10-20,029.40

Finding the Fourth Proportional to 20,175.20, 30,287.10 and 20,029.40

Calculator

Solution

The fourth proportional to 20,175.20, 30,287.10 and 20,029.40 is: 30,068.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,175.20 : 30,287.10 = 20,029.40 : x
  2. Step 2: Convert to fraction form
    20,175.20/30,287.10 = 20,029.40/x
  3. Step 3: Cross multiply
    20,175.20x = 30,287.10 × 20,029.40
  4. Step 4: Simplify right side
    20,175.20x = 606,632,440.74
  5. Step 5: Solve for x
    x = 606,632,440.74/20,175.20
  6. Step 6: Final answer
    x = 30,068.22

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.