Home / 18,037.27-27,031.20-10,143.62

Finding the Fourth Proportional to 18,037.27, 27,031.20 and 10,143.62

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Solution

The fourth proportional to 18,037.27, 27,031.20 and 10,143.62 is: 15,201.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,037.27 : 27,031.20 = 10,143.62 : x
  2. Step 2: Convert to fraction form
    18,037.27/27,031.20 = 10,143.62/x
  3. Step 3: Cross multiply
    18,037.27x = 27,031.20 × 10,143.62
  4. Step 4: Simplify right side
    18,037.27x = 274,194,220.94
  5. Step 5: Solve for x
    x = 274,194,220.94/18,037.27
  6. Step 6: Final answer
    x = 15,201.54

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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.