Home / 21,440-29,587.20-12,008.54

Finding the Fourth Proportional to 21,440, 29,587.20 and 12,008.54

Calculator

Solution

The fourth proportional to 21,440, 29,587.20 and 12,008.54 is: 16,571.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440 : 29,587.20 = 12,008.54 : x
  2. Step 2: Convert to fraction form
    21,440/29,587.20 = 12,008.54/x
  3. Step 3: Cross multiply
    21,440x = 29,587.20 × 12,008.54
  4. Step 4: Simplify right side
    21,440x = 355,299,074.69
  5. Step 5: Solve for x
    x = 355,299,074.69/21,440
  6. Step 6: Final answer
    x = 16,571.79

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.