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Finding the Fourth Proportional to 30,571.87, 45,848.91 and 11,847.73

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Solution

The fourth proportional to 30,571.87, 45,848.91 and 11,847.73 is: 17,768.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571.87 : 45,848.91 = 11,847.73 : x
  2. Step 2: Convert to fraction form
    30,571.87/45,848.91 = 11,847.73/x
  3. Step 3: Cross multiply
    30,571.87x = 45,848.91 × 11,847.73
  4. Step 4: Simplify right side
    30,571.87x = 543,205,506.47
  5. Step 5: Solve for x
    x = 543,205,506.47/30,571.87
  6. Step 6: Final answer
    x = 17,768.15

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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.