Home / 20,353.07-28,088.09-11,853.82

Finding the Fourth Proportional to 20,353.07, 28,088.09 and 11,853.82

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Solution

The fourth proportional to 20,353.07, 28,088.09 and 11,853.82 is: 16,358.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,353.07 : 28,088.09 = 11,853.82 : x
  2. Step 2: Convert to fraction form
    20,353.07/28,088.09 = 11,853.82/x
  3. Step 3: Cross multiply
    20,353.07x = 28,088.09 × 11,853.82
  4. Step 4: Simplify right side
    20,353.07x = 332,951,122.42
  5. Step 5: Solve for x
    x = 332,951,122.42/20,353.07
  6. Step 6: Final answer
    x = 16,358.77

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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.