Home / 27,939.20-41,905.60-10,409.60

Finding the Fourth Proportional to 27,939.20, 41,905.60 and 10,409.60

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Solution

The fourth proportional to 27,939.20, 41,905.60 and 10,409.60 is: 15,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,939.20 : 41,905.60 = 10,409.60 : x
  2. Step 2: Convert to fraction form
    27,939.20/41,905.60 = 10,409.60/x
  3. Step 3: Cross multiply
    27,939.20x = 41,905.60 × 10,409.60
  4. Step 4: Simplify right side
    27,939.20x = 436,220,533.76
  5. Step 5: Solve for x
    x = 436,220,533.76/27,939.20
  6. Step 6: Final answer
    x = 15,613.21

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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.