Home / 27,963.98-38,590.37-15,388.73

Finding the Fourth Proportional to 27,963.98, 38,590.37 and 15,388.73

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Solution

The fourth proportional to 27,963.98, 38,590.37 and 15,388.73 is: 21,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,963.98 : 38,590.37 = 15,388.73 : x
  2. Step 2: Convert to fraction form
    27,963.98/38,590.37 = 15,388.73/x
  3. Step 3: Cross multiply
    27,963.98x = 38,590.37 × 15,388.73
  4. Step 4: Simplify right side
    27,963.98x = 593,857,020.69
  5. Step 5: Solve for x
    x = 593,857,020.69/27,963.98
  6. Step 6: Final answer
    x = 21,236.50

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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.