Home / 38,985.39-58,481.79-10,905.45

Finding the Fourth Proportional to 38,985.39, 58,481.79 and 10,905.45

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Solution

The fourth proportional to 38,985.39, 58,481.79 and 10,905.45 is: 16,359.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,985.39 : 58,481.79 = 10,905.45 : x
  2. Step 2: Convert to fraction form
    38,985.39/58,481.79 = 10,905.45/x
  3. Step 3: Cross multiply
    38,985.39x = 58,481.79 × 10,905.45
  4. Step 4: Simplify right side
    38,985.39x = 637,770,236.76
  5. Step 5: Solve for x
    x = 637,770,236.76/38,985.39
  6. Step 6: Final answer
    x = 16,359.21

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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.