Home / 20,385.60-30,578.39-5,594.59

Finding the Fourth Proportional to 20,385.60, 30,578.39 and 5,594.59

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Solution

The fourth proportional to 20,385.60, 30,578.39 and 5,594.59 is: 8,391.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385.60 : 30,578.39 = 5,594.59 : x
  2. Step 2: Convert to fraction form
    20,385.60/30,578.39 = 5,594.59/x
  3. Step 3: Cross multiply
    20,385.60x = 30,578.39 × 5,594.59
  4. Step 4: Simplify right side
    20,385.60x = 171,073,554.91
  5. Step 5: Solve for x
    x = 171,073,554.91/20,385.60
  6. Step 6: Final answer
    x = 8,391.88

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Similar ratio
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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.