Home / 20,784.54-31,160.50-9,689.76

Finding the Fourth Proportional to 20,784.54, 31,160.50 and 9,689.76

Calculator

Solution

The fourth proportional to 20,784.54, 31,160.50 and 9,689.76 is: 14,527.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784.54 : 31,160.50 = 9,689.76 : x
  2. Step 2: Convert to fraction form
    20,784.54/31,160.50 = 9,689.76/x
  3. Step 3: Cross multiply
    20,784.54x = 31,160.50 × 9,689.76
  4. Step 4: Simplify right side
    20,784.54x = 301,937,766.48
  5. Step 5: Solve for x
    x = 301,937,766.48/20,784.54
  6. Step 6: Final answer
    x = 14,527.04

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.