Home / 20,049.69-30,009.45-10,676.37

Finding the Fourth Proportional to 20,049.69, 30,009.45 and 10,676.37

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Solution

The fourth proportional to 20,049.69, 30,009.45 and 10,676.37 is: 15,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049.69 : 30,009.45 = 10,676.37 : x
  2. Step 2: Convert to fraction form
    20,049.69/30,009.45 = 10,676.37/x
  3. Step 3: Cross multiply
    20,049.69x = 30,009.45 × 10,676.37
  4. Step 4: Simplify right side
    20,049.69x = 320,391,991.70
  5. Step 5: Solve for x
    x = 320,391,991.70/20,049.69
  6. Step 6: Final answer
    x = 15,979.90

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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.