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Finding the Fourth Proportional to 38,939.67, 58,409.64 and 11,237.67

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Solution

The fourth proportional to 38,939.67, 58,409.64 and 11,237.67 is: 16,856.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,939.67 : 58,409.64 = 11,237.67 : x
  2. Step 2: Convert to fraction form
    38,939.67/58,409.64 = 11,237.67/x
  3. Step 3: Cross multiply
    38,939.67x = 58,409.64 × 11,237.67
  4. Step 4: Simplify right side
    38,939.67x = 656,388,259.14
  5. Step 5: Solve for x
    x = 656,388,259.14/38,939.67
  6. Step 6: Final answer
    x = 16,856.54

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1.5x scale

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.