Home / 28,758.85-39,692.63-16,183.60

Finding the Fourth Proportional to 28,758.85, 39,692.63 and 16,183.60

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Solution

The fourth proportional to 28,758.85, 39,692.63 and 16,183.60 is: 22,336.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.85 : 39,692.63 = 16,183.60 : x
  2. Step 2: Convert to fraction form
    28,758.85/39,692.63 = 16,183.60/x
  3. Step 3: Cross multiply
    28,758.85x = 39,692.63 × 16,183.60
  4. Step 4: Simplify right side
    28,758.85x = 642,369,588.10
  5. Step 5: Solve for x
    x = 642,369,588.10/28,758.85
  6. Step 6: Final answer
    x = 22,336.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.