Home / 27,845.28-41,769.81-9,120.38

Finding the Fourth Proportional to 27,845.28, 41,769.81 and 9,120.38

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Solution

The fourth proportional to 27,845.28, 41,769.81 and 9,120.38 is: 13,681.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,845.28 : 41,769.81 = 9,120.38 : x
  2. Step 2: Convert to fraction form
    27,845.28/41,769.81 = 9,120.38/x
  3. Step 3: Cross multiply
    27,845.28x = 41,769.81 × 9,120.38
  4. Step 4: Simplify right side
    27,845.28x = 380,956,330.88
  5. Step 5: Solve for x
    x = 380,956,330.88/27,845.28
  6. Step 6: Final answer
    x = 13,681.18

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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.