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Finding the Fourth Proportional to 19,955.75, 29,933.67 and 8,269.25

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Solution

The fourth proportional to 19,955.75, 29,933.67 and 8,269.25 is: 12,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.75 : 29,933.67 = 8,269.25 : x
  2. Step 2: Convert to fraction form
    19,955.75/29,933.67 = 8,269.25/x
  3. Step 3: Cross multiply
    19,955.75x = 29,933.67 × 8,269.25
  4. Step 4: Simplify right side
    19,955.75x = 247,529,000.65
  5. Step 5: Solve for x
    x = 247,529,000.65/19,955.75
  6. Step 6: Final answer
    x = 12,403.89

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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.