Home / 27,457.92-41,189.76-8,991.36

Finding the Fourth Proportional to 27,457.92, 41,189.76 and 8,991.36

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Solution

The fourth proportional to 27,457.92, 41,189.76 and 8,991.36 is: 13,487.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,457.92 : 41,189.76 = 8,991.36 : x
  2. Step 2: Convert to fraction form
    27,457.92/41,189.76 = 8,991.36/x
  3. Step 3: Cross multiply
    27,457.92x = 41,189.76 × 8,991.36
  4. Step 4: Simplify right side
    27,457.92x = 370,351,960.47
  5. Step 5: Solve for x
    x = 370,351,960.47/27,457.92
  6. Step 6: Final answer
    x = 13,487.98

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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.