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Finding the Fourth Proportional to 27,969.12, 41,953.68 and 7,191

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Solution

The fourth proportional to 27,969.12, 41,953.68 and 7,191 is: 10,786.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,969.12 : 41,953.68 = 7,191 : x
  2. Step 2: Convert to fraction form
    27,969.12/41,953.68 = 7,191/x
  3. Step 3: Cross multiply
    27,969.12x = 41,953.68 × 7,191
  4. Step 4: Simplify right side
    27,969.12x = 301,688,912.88
  5. Step 5: Solve for x
    x = 301,688,912.88/27,969.12
  6. Step 6: Final answer
    x = 10,786.50

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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.