Home / 20,904.30-31,356.27-5,321.88

Finding the Fourth Proportional to 20,904.30, 31,356.27 and 5,321.88

Calculator

Solution

The fourth proportional to 20,904.30, 31,356.27 and 5,321.88 is: 7,982.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.30 : 31,356.27 = 5,321.88 : x
  2. Step 2: Convert to fraction form
    20,904.30/31,356.27 = 5,321.88/x
  3. Step 3: Cross multiply
    20,904.30x = 31,356.27 × 5,321.88
  4. Step 4: Simplify right side
    20,904.30x = 166,874,306.19
  5. Step 5: Solve for x
    x = 166,874,306.19/20,904.30
  6. Step 6: Final answer
    x = 7,982.77

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.