Home / 20,142.24-30,184.19-11,358.48

Finding the Fourth Proportional to 20,142.24, 30,184.19 and 11,358.48

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Solution

The fourth proportional to 20,142.24, 30,184.19 and 11,358.48 is: 17,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142.24 : 30,184.19 = 11,358.48 : x
  2. Step 2: Convert to fraction form
    20,142.24/30,184.19 = 11,358.48/x
  3. Step 3: Cross multiply
    20,142.24x = 30,184.19 × 11,358.48
  4. Step 4: Simplify right side
    20,142.24x = 342,846,461.64
  5. Step 5: Solve for x
    x = 342,846,461.64/20,142.24
  6. Step 6: Final answer
    x = 17,021.27

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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.