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Finding the Fourth Proportional to 30,450.87, 45,675.24 and 10,728.99

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Solution

The fourth proportional to 30,450.87, 45,675.24 and 10,728.99 is: 16,093.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,450.87 : 45,675.24 = 10,728.99 : x
  2. Step 2: Convert to fraction form
    30,450.87/45,675.24 = 10,728.99/x
  3. Step 3: Cross multiply
    30,450.87x = 45,675.24 × 10,728.99
  4. Step 4: Simplify right side
    30,450.87x = 490,049,213.32
  5. Step 5: Solve for x
    x = 490,049,213.32/30,450.87
  6. Step 6: Final answer
    x = 16,093.11

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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.