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Finding the Fourth Proportional to 27,699.79, 41,530.78 and 15,866.91

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Solution

The fourth proportional to 27,699.79, 41,530.78 and 15,866.91 is: 23,789.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,699.79 : 41,530.78 = 15,866.91 : x
  2. Step 2: Convert to fraction form
    27,699.79/41,530.78 = 15,866.91/x
  3. Step 3: Cross multiply
    27,699.79x = 41,530.78 × 15,866.91
  4. Step 4: Simplify right side
    27,699.79x = 658,965,148.49
  5. Step 5: Solve for x
    x = 658,965,148.49/27,699.79
  6. Step 6: Final answer
    x = 23,789.54

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1.5x scale

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.