Home / 20,385.94-30,578.64-5,594.85

Finding the Fourth Proportional to 20,385.94, 30,578.64 and 5,594.85

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Solution

The fourth proportional to 20,385.94, 30,578.64 and 5,594.85 is: 8,392.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385.94 : 30,578.64 = 5,594.85 : x
  2. Step 2: Convert to fraction form
    20,385.94/30,578.64 = 5,594.85/x
  3. Step 3: Cross multiply
    20,385.94x = 30,578.64 × 5,594.85
  4. Step 4: Simplify right side
    20,385.94x = 171,082,904.00
  5. Step 5: Solve for x
    x = 171,082,904.00/20,385.94
  6. Step 6: Final answer
    x = 8,392.20

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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.