Home / 20,186.63-30,286.11-10,332.89

Finding the Fourth Proportional to 20,186.63, 30,286.11 and 10,332.89

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Solution

The fourth proportional to 20,186.63, 30,286.11 and 10,332.89 is: 15,502.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.63 : 30,286.11 = 10,332.89 : x
  2. Step 2: Convert to fraction form
    20,186.63/30,286.11 = 10,332.89/x
  3. Step 3: Cross multiply
    20,186.63x = 30,286.11 × 10,332.89
  4. Step 4: Simplify right side
    20,186.63x = 312,942,891.73
  5. Step 5: Solve for x
    x = 312,942,891.73/20,186.63
  6. Step 6: Final answer
    x = 15,502.49

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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.