Home / 27,778.62-38,333.54-15,845.82

Finding the Fourth Proportional to 27,778.62, 38,333.54 and 15,845.82

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Solution

The fourth proportional to 27,778.62, 38,333.54 and 15,845.82 is: 21,866.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,778.62 : 38,333.54 = 15,845.82 : x
  2. Step 2: Convert to fraction form
    27,778.62/38,333.54 = 15,845.82/x
  3. Step 3: Cross multiply
    27,778.62x = 38,333.54 × 15,845.82
  4. Step 4: Simplify right side
    27,778.62x = 607,426,374.80
  5. Step 5: Solve for x
    x = 607,426,374.80/27,778.62
  6. Step 6: Final answer
    x = 21,866.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.