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Finding the Fourth Proportional to 38,510.37, 57,771.03 and 11,858.59

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Solution

The fourth proportional to 38,510.37, 57,771.03 and 11,858.59 is: 17,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,510.37 : 57,771.03 = 11,858.59 : x
  2. Step 2: Convert to fraction form
    38,510.37/57,771.03 = 11,858.59/x
  3. Step 3: Cross multiply
    38,510.37x = 57,771.03 × 11,858.59
  4. Step 4: Simplify right side
    38,510.37x = 685,082,958.65
  5. Step 5: Solve for x
    x = 685,082,958.65/38,510.37
  6. Step 6: Final answer
    x = 17,789.57

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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.