Home / 20,997.75-28,976.90-11,566.52

Finding the Fourth Proportional to 20,997.75, 28,976.90 and 11,566.52

Calculator

Solution

The fourth proportional to 20,997.75, 28,976.90 and 11,566.52 is: 15,961.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997.75 : 28,976.90 = 11,566.52 : x
  2. Step 2: Convert to fraction form
    20,997.75/28,976.90 = 11,566.52/x
  3. Step 3: Cross multiply
    20,997.75x = 28,976.90 × 11,566.52
  4. Step 4: Simplify right side
    20,997.75x = 335,161,690.67
  5. Step 5: Solve for x
    x = 335,161,690.67/20,997.75
  6. Step 6: Final answer
    x = 15,961.79

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.