Home / 20,163.48-27,819.18-12,203.16

Finding the Fourth Proportional to 20,163.48, 27,819.18 and 12,203.16

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Solution

The fourth proportional to 20,163.48, 27,819.18 and 12,203.16 is: 16,836.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.48 : 27,819.18 = 12,203.16 : x
  2. Step 2: Convert to fraction form
    20,163.48/27,819.18 = 12,203.16/x
  3. Step 3: Cross multiply
    20,163.48x = 27,819.18 × 12,203.16
  4. Step 4: Simplify right side
    20,163.48x = 339,481,904.61
  5. Step 5: Solve for x
    x = 339,481,904.61/20,163.48
  6. Step 6: Final answer
    x = 16,836.47

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1.5x scale

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.