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Finding the Fourth Proportional to 38,490.84, 57,736.08 and 10,788.84

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Solution

The fourth proportional to 38,490.84, 57,736.08 and 10,788.84 is: 16,183.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,490.84 : 57,736.08 = 10,788.84 : x
  2. Step 2: Convert to fraction form
    38,490.84/57,736.08 = 10,788.84/x
  3. Step 3: Cross multiply
    38,490.84x = 57,736.08 × 10,788.84
  4. Step 4: Simplify right side
    38,490.84x = 622,905,329.35
  5. Step 5: Solve for x
    x = 622,905,329.35/38,490.84
  6. Step 6: Final answer
    x = 16,183.21

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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.