Home / 38,660.09-57,961.78-12,349.67

Finding the Fourth Proportional to 38,660.09, 57,961.78 and 12,349.67

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Solution

The fourth proportional to 38,660.09, 57,961.78 and 12,349.67 is: 18,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.09 : 57,961.78 = 12,349.67 : x
  2. Step 2: Convert to fraction form
    38,660.09/57,961.78 = 12,349.67/x
  3. Step 3: Cross multiply
    38,660.09x = 57,961.78 × 12,349.67
  4. Step 4: Simplify right side
    38,660.09x = 715,808,534.93
  5. Step 5: Solve for x
    x = 715,808,534.93/38,660.09
  6. Step 6: Final answer
    x = 18,515.44

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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.