Home / 38,786.21-58,164.92-13,819.65

Finding the Fourth Proportional to 38,786.21, 58,164.92 and 13,819.65

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Solution

The fourth proportional to 38,786.21, 58,164.92 and 13,819.65 is: 20,724.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,786.21 : 58,164.92 = 13,819.65 : x
  2. Step 2: Convert to fraction form
    38,786.21/58,164.92 = 13,819.65/x
  3. Step 3: Cross multiply
    38,786.21x = 58,164.92 × 13,819.65
  4. Step 4: Simplify right side
    38,786.21x = 803,818,601.28
  5. Step 5: Solve for x
    x = 803,818,601.28/38,786.21
  6. Step 6: Final answer
    x = 20,724.34

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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.