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Finding the Fourth Proportional to 27,340.81, 40,999.62 and 8,615.81

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Solution

The fourth proportional to 27,340.81, 40,999.62 and 8,615.81 is: 12,920.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,340.81 : 40,999.62 = 8,615.81 : x
  2. Step 2: Convert to fraction form
    27,340.81/40,999.62 = 8,615.81/x
  3. Step 3: Cross multiply
    27,340.81x = 40,999.62 × 8,615.81
  4. Step 4: Simplify right side
    27,340.81x = 353,244,935.99
  5. Step 5: Solve for x
    x = 353,244,935.99/27,340.81
  6. Step 6: Final answer
    x = 12,920.06

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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.