Home / 27,890.16-41,848.92-12,289.20

Finding the Fourth Proportional to 27,890.16, 41,848.92 and 12,289.20

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Solution

The fourth proportional to 27,890.16, 41,848.92 and 12,289.20 is: 18,439.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,890.16 : 41,848.92 = 12,289.20 : x
  2. Step 2: Convert to fraction form
    27,890.16/41,848.92 = 12,289.20/x
  3. Step 3: Cross multiply
    27,890.16x = 41,848.92 × 12,289.20
  4. Step 4: Simplify right side
    27,890.16x = 514,289,747.66
  5. Step 5: Solve for x
    x = 514,289,747.66/27,890.16
  6. Step 6: Final answer
    x = 18,439.83

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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.