Home / 31,764.41-47,647.60-11,778.87

Finding the Fourth Proportional to 31,764.41, 47,647.60 and 11,778.87

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Solution

The fourth proportional to 31,764.41, 47,647.60 and 11,778.87 is: 17,668.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,764.41 : 47,647.60 = 11,778.87 : x
  2. Step 2: Convert to fraction form
    31,764.41/47,647.60 = 11,778.87/x
  3. Step 3: Cross multiply
    31,764.41x = 47,647.60 × 11,778.87
  4. Step 4: Simplify right side
    31,764.41x = 561,234,886.21
  5. Step 5: Solve for x
    x = 561,234,886.21/31,764.41
  6. Step 6: Final answer
    x = 17,668.67

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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.