Home / 27,579.69-41,363.28-7,857.81

Finding the Fourth Proportional to 27,579.69, 41,363.28 and 7,857.81

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Solution

The fourth proportional to 27,579.69, 41,363.28 and 7,857.81 is: 11,784.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,579.69 : 41,363.28 = 7,857.81 : x
  2. Step 2: Convert to fraction form
    27,579.69/41,363.28 = 7,857.81/x
  3. Step 3: Cross multiply
    27,579.69x = 41,363.28 × 7,857.81
  4. Step 4: Simplify right side
    27,579.69x = 325,024,795.22
  5. Step 5: Solve for x
    x = 325,024,795.22/27,579.69
  6. Step 6: Final answer
    x = 11,784.93

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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.