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Finding the Fourth Proportional to 27,179.70, 40,764.39 and 8,459.97

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Solution

The fourth proportional to 27,179.70, 40,764.39 and 8,459.97 is: 12,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,179.70 : 40,764.39 = 8,459.97 : x
  2. Step 2: Convert to fraction form
    27,179.70/40,764.39 = 8,459.97/x
  3. Step 3: Cross multiply
    27,179.70x = 40,764.39 × 8,459.97
  4. Step 4: Simplify right side
    27,179.70x = 344,865,312.65
  5. Step 5: Solve for x
    x = 344,865,312.65/27,179.70
  6. Step 6: Final answer
    x = 12,688.34

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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.