Home / 27,829.72-38,441.82-20,743.84

Finding the Fourth Proportional to 27,829.72, 38,441.82 and 20,743.84

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Solution

The fourth proportional to 27,829.72, 38,441.82 and 20,743.84 is: 28,653.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,829.72 : 38,441.82 = 20,743.84 : x
  2. Step 2: Convert to fraction form
    27,829.72/38,441.82 = 20,743.84/x
  3. Step 3: Cross multiply
    27,829.72x = 38,441.82 × 20,743.84
  4. Step 4: Simplify right side
    27,829.72x = 797,430,963.39
  5. Step 5: Solve for x
    x = 797,430,963.39/27,829.72
  6. Step 6: Final answer
    x = 28,653.93

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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.