Home / 20,629.24-30,975.42-18,184.64

Finding the Fourth Proportional to 20,629.24, 30,975.42 and 18,184.64

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Solution

The fourth proportional to 20,629.24, 30,975.42 and 18,184.64 is: 27,304.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.24 : 30,975.42 = 18,184.64 : x
  2. Step 2: Convert to fraction form
    20,629.24/30,975.42 = 18,184.64/x
  3. Step 3: Cross multiply
    20,629.24x = 30,975.42 × 18,184.64
  4. Step 4: Simplify right side
    20,629.24x = 563,276,861.55
  5. Step 5: Solve for x
    x = 563,276,861.55/20,629.24
  6. Step 6: Final answer
    x = 27,304.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.