Home / 20,579.38-30,836.64-15,910.82

Finding the Fourth Proportional to 20,579.38, 30,836.64 and 15,910.82

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Solution

The fourth proportional to 20,579.38, 30,836.64 and 15,910.82 is: 23,841.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.38 : 30,836.64 = 15,910.82 : x
  2. Step 2: Convert to fraction form
    20,579.38/30,836.64 = 15,910.82/x
  3. Step 3: Cross multiply
    20,579.38x = 30,836.64 × 15,910.82
  4. Step 4: Simplify right side
    20,579.38x = 490,636,228.44
  5. Step 5: Solve for x
    x = 490,636,228.44/20,579.38
  6. Step 6: Final answer
    x = 23,841.16

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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.