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Finding the Fourth Proportional to 27,103.71, 40,660.56 and 12,313.74

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Solution

The fourth proportional to 27,103.71, 40,660.56 and 12,313.74 is: 18,472.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,103.71 : 40,660.56 = 12,313.74 : x
  2. Step 2: Convert to fraction form
    27,103.71/40,660.56 = 12,313.74/x
  3. Step 3: Cross multiply
    27,103.71x = 40,660.56 × 12,313.74
  4. Step 4: Simplify right side
    27,103.71x = 500,683,564.09
  5. Step 5: Solve for x
    x = 500,683,564.09/27,103.71
  6. Step 6: Final answer
    x = 18,472.88

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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.