Home / 20,385.54-30,578.34-5,593.86

Finding the Fourth Proportional to 20,385.54, 30,578.34 and 5,593.86

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Solution

The fourth proportional to 20,385.54, 30,578.34 and 5,593.86 is: 8,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385.54 : 30,578.34 = 5,593.86 : x
  2. Step 2: Convert to fraction form
    20,385.54/30,578.34 = 5,593.86/x
  3. Step 3: Cross multiply
    20,385.54x = 30,578.34 × 5,593.86
  4. Step 4: Simplify right side
    20,385.54x = 171,050,952.99
  5. Step 5: Solve for x
    x = 171,050,952.99/20,385.54
  6. Step 6: Final answer
    x = 8,390.80

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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.