Home / 20,647.88-28,494-11,216.36

Finding the Fourth Proportional to 20,647.88, 28,494 and 11,216.36

Calculator

Solution

The fourth proportional to 20,647.88, 28,494 and 11,216.36 is: 15,478.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.88 : 28,494 = 11,216.36 : x
  2. Step 2: Convert to fraction form
    20,647.88/28,494 = 11,216.36/x
  3. Step 3: Cross multiply
    20,647.88x = 28,494 × 11,216.36
  4. Step 4: Simplify right side
    20,647.88x = 319,598,961.84
  5. Step 5: Solve for x
    x = 319,598,961.84/20,647.88
  6. Step 6: Final answer
    x = 15,478.54

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.