Home / 20,299.94-30,450.55-5,509.19

Finding the Fourth Proportional to 20,299.94, 30,450.55 and 5,509.19

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Solution

The fourth proportional to 20,299.94, 30,450.55 and 5,509.19 is: 8,263.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299.94 : 30,450.55 = 5,509.19 : x
  2. Step 2: Convert to fraction form
    20,299.94/30,450.55 = 5,509.19/x
  3. Step 3: Cross multiply
    20,299.94x = 30,450.55 × 5,509.19
  4. Step 4: Simplify right side
    20,299.94x = 167,757,865.55
  5. Step 5: Solve for x
    x = 167,757,865.55/20,299.94
  6. Step 6: Final answer
    x = 8,263.96

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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.