Home / 27,956.50-38,580.78-15,382.06

Finding the Fourth Proportional to 27,956.50, 38,580.78 and 15,382.06

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Solution

The fourth proportional to 27,956.50, 38,580.78 and 15,382.06 is: 21,227.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,956.50 : 38,580.78 = 15,382.06 : x
  2. Step 2: Convert to fraction form
    27,956.50/38,580.78 = 15,382.06/x
  3. Step 3: Cross multiply
    27,956.50x = 38,580.78 × 15,382.06
  4. Step 4: Simplify right side
    27,956.50x = 593,451,872.81
  5. Step 5: Solve for x
    x = 593,451,872.81/27,956.50
  6. Step 6: Final answer
    x = 21,227.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.