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Finding the Fourth Proportional to 27,807.79, 41,718.80 and 8,086.35

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Solution

The fourth proportional to 27,807.79, 41,718.80 and 8,086.35 is: 12,131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807.79 : 41,718.80 = 8,086.35 : x
  2. Step 2: Convert to fraction form
    27,807.79/41,718.80 = 8,086.35/x
  3. Step 3: Cross multiply
    27,807.79x = 41,718.80 × 8,086.35
  4. Step 4: Simplify right side
    27,807.79x = 337,352,818.38
  5. Step 5: Solve for x
    x = 337,352,818.38/27,807.79
  6. Step 6: Final answer
    x = 12,131.59

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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.