Home / 21,556.38-29,748.00-11,996.67

Finding the Fourth Proportional to 21,556.38, 29,748.00 and 11,996.67

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Solution

The fourth proportional to 21,556.38, 29,748.00 and 11,996.67 is: 16,555.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,556.38 : 29,748.00 = 11,996.67 : x
  2. Step 2: Convert to fraction form
    21,556.38/29,748.00 = 11,996.67/x
  3. Step 3: Cross multiply
    21,556.38x = 29,748.00 × 11,996.67
  4. Step 4: Simplify right side
    21,556.38x = 356,876,879.18
  5. Step 5: Solve for x
    x = 356,876,879.18/21,556.38
  6. Step 6: Final answer
    x = 16,555.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.