Home / 20,385.32-30,578.57-5,594.36

Finding the Fourth Proportional to 20,385.32, 30,578.57 and 5,594.36

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Solution

The fourth proportional to 20,385.32, 30,578.57 and 5,594.36 is: 8,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385.32 : 30,578.57 = 5,594.36 : x
  2. Step 2: Convert to fraction form
    20,385.32/30,578.57 = 5,594.36/x
  3. Step 3: Cross multiply
    20,385.32x = 30,578.57 × 5,594.36
  4. Step 4: Simplify right side
    20,385.32x = 171,067,500.89
  5. Step 5: Solve for x
    x = 171,067,500.89/20,385.32
  6. Step 6: Final answer
    x = 8,391.70

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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.