Home / 27,858.60-41,789.86-11,218.70

Finding the Fourth Proportional to 27,858.60, 41,789.86 and 11,218.70

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Solution

The fourth proportional to 27,858.60, 41,789.86 and 11,218.70 is: 16,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,858.60 : 41,789.86 = 11,218.70 : x
  2. Step 2: Convert to fraction form
    27,858.60/41,789.86 = 11,218.70/x
  3. Step 3: Cross multiply
    27,858.60x = 41,789.86 × 11,218.70
  4. Step 4: Simplify right side
    27,858.60x = 468,827,978.81
  5. Step 5: Solve for x
    x = 468,827,978.81/27,858.60
  6. Step 6: Final answer
    x = 16,828.84

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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.