Home / 21,785.20-30,064-12,353.60

Finding the Fourth Proportional to 21,785.20, 30,064 and 12,353.60

Calculator

Solution

The fourth proportional to 21,785.20, 30,064 and 12,353.60 is: 17,048.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,785.20 : 30,064 = 12,353.60 : x
  2. Step 2: Convert to fraction form
    21,785.20/30,064 = 12,353.60/x
  3. Step 3: Cross multiply
    21,785.20x = 30,064 × 12,353.60
  4. Step 4: Simplify right side
    21,785.20x = 371,398,630.40
  5. Step 5: Solve for x
    x = 371,398,630.40/21,785.20
  6. Step 6: Final answer
    x = 17,048.21

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.