Home / 28,709.52-39,631.68-16,768.32

Finding the Fourth Proportional to 28,709.52, 39,631.68 and 16,768.32

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Solution

The fourth proportional to 28,709.52, 39,631.68 and 16,768.32 is: 23,147.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709.52 : 39,631.68 = 16,768.32 : x
  2. Step 2: Convert to fraction form
    28,709.52/39,631.68 = 16,768.32/x
  3. Step 3: Cross multiply
    28,709.52x = 39,631.68 × 16,768.32
  4. Step 4: Simplify right side
    28,709.52x = 664,556,692.38
  5. Step 5: Solve for x
    x = 664,556,692.38/28,709.52
  6. Step 6: Final answer
    x = 23,147.61

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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.