Home / 20,576.32-30,864.47-4,993.94

Finding the Fourth Proportional to 20,576.32, 30,864.47 and 4,993.94

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Solution

The fourth proportional to 20,576.32, 30,864.47 and 4,993.94 is: 7,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.32 : 30,864.47 = 4,993.94 : x
  2. Step 2: Convert to fraction form
    20,576.32/30,864.47 = 4,993.94/x
  3. Step 3: Cross multiply
    20,576.32x = 30,864.47 × 4,993.94
  4. Step 4: Simplify right side
    20,576.32x = 154,135,311.31
  5. Step 5: Solve for x
    x = 154,135,311.31/20,576.32
  6. Step 6: Final answer
    x = 7,490.91

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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.