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Finding the Fourth Proportional to 19,970.27, 29,958.93 and 6,819.56

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Solution

The fourth proportional to 19,970.27, 29,958.93 and 6,819.56 is: 10,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,970.27 : 29,958.93 = 6,819.56 : x
  2. Step 2: Convert to fraction form
    19,970.27/29,958.93 = 6,819.56/x
  3. Step 3: Cross multiply
    19,970.27x = 29,958.93 × 6,819.56
  4. Step 4: Simplify right side
    19,970.27x = 204,306,720.67
  5. Step 5: Solve for x
    x = 204,306,720.67/19,970.27
  6. Step 6: Final answer
    x = 10,230.54

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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.