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Finding the Fourth Proportional to 38,808, 58,212.54 and 11,106

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Solution

The fourth proportional to 38,808, 58,212.54 and 11,106 is: 16,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,808 : 58,212.54 = 11,106 : x
  2. Step 2: Convert to fraction form
    38,808/58,212.54 = 11,106/x
  3. Step 3: Cross multiply
    38,808x = 58,212.54 × 11,106
  4. Step 4: Simplify right side
    38,808x = 646,508,469.24
  5. Step 5: Solve for x
    x = 646,508,469.24/38,808
  6. Step 6: Final answer
    x = 16,659.15

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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.