Home / 27,628.38-41,438.34-8,905.86

Finding the Fourth Proportional to 27,628.38, 41,438.34 and 8,905.86

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Solution

The fourth proportional to 27,628.38, 41,438.34 and 8,905.86 is: 13,357.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,628.38 : 41,438.34 = 8,905.86 : x
  2. Step 2: Convert to fraction form
    27,628.38/41,438.34 = 8,905.86/x
  3. Step 3: Cross multiply
    27,628.38x = 41,438.34 × 8,905.86
  4. Step 4: Simplify right side
    27,628.38x = 369,044,054.67
  5. Step 5: Solve for x
    x = 369,044,054.67/27,628.38
  6. Step 6: Final answer
    x = 13,357.43

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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.