Home / 27,345.73-40,986.60-12,556.09

Finding the Fourth Proportional to 27,345.73, 40,986.60 and 12,556.09

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Solution

The fourth proportional to 27,345.73, 40,986.60 and 12,556.09 is: 18,819.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,345.73 : 40,986.60 = 12,556.09 : x
  2. Step 2: Convert to fraction form
    27,345.73/40,986.60 = 12,556.09/x
  3. Step 3: Cross multiply
    27,345.73x = 40,986.60 × 12,556.09
  4. Step 4: Simplify right side
    27,345.73x = 514,631,438.39
  5. Step 5: Solve for x
    x = 514,631,438.39/27,345.73
  6. Step 6: Final answer
    x = 18,819.44

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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.