Home / 21,247.79-29,321.97-11,816.35

Finding the Fourth Proportional to 21,247.79, 29,321.97 and 11,816.35

Calculator

Solution

The fourth proportional to 21,247.79, 29,321.97 and 11,816.35 is: 16,306.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,247.79 : 29,321.97 = 11,816.35 : x
  2. Step 2: Convert to fraction form
    21,247.79/29,321.97 = 11,816.35/x
  3. Step 3: Cross multiply
    21,247.79x = 29,321.97 × 11,816.35
  4. Step 4: Simplify right side
    21,247.79x = 346,478,704.14
  5. Step 5: Solve for x
    x = 346,478,704.14/21,247.79
  6. Step 6: Final answer
    x = 16,306.58

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.