Home / 21,668.43-29,902.28-11,732.43

Finding the Fourth Proportional to 21,668.43, 29,902.28 and 11,732.43

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Solution

The fourth proportional to 21,668.43, 29,902.28 and 11,732.43 is: 16,190.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.43 : 29,902.28 = 11,732.43 : x
  2. Step 2: Convert to fraction form
    21,668.43/29,902.28 = 11,732.43/x
  3. Step 3: Cross multiply
    21,668.43x = 29,902.28 × 11,732.43
  4. Step 4: Simplify right side
    21,668.43x = 350,826,348.28
  5. Step 5: Solve for x
    x = 350,826,348.28/21,668.43
  6. Step 6: Final answer
    x = 16,190.67

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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.