Home / 27,789.76-38,356.62-17,173

Finding the Fourth Proportional to 27,789.76, 38,356.62 and 17,173

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Solution

The fourth proportional to 27,789.76, 38,356.62 and 17,173 is: 23,702.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,789.76 : 38,356.62 = 17,173 : x
  2. Step 2: Convert to fraction form
    27,789.76/38,356.62 = 17,173/x
  3. Step 3: Cross multiply
    27,789.76x = 38,356.62 × 17,173
  4. Step 4: Simplify right side
    27,789.76x = 658,698,235.26
  5. Step 5: Solve for x
    x = 658,698,235.26/27,789.76
  6. Step 6: Final answer
    x = 23,702.91

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1.5x scale

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.