Home / 28,745.12-39,668.58-16,169.87

Finding the Fourth Proportional to 28,745.12, 39,668.58 and 16,169.87

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Solution

The fourth proportional to 28,745.12, 39,668.58 and 16,169.87 is: 22,314.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,745.12 : 39,668.58 = 16,169.87 : x
  2. Step 2: Convert to fraction form
    28,745.12/39,668.58 = 16,169.87/x
  3. Step 3: Cross multiply
    28,745.12x = 39,668.58 × 16,169.87
  4. Step 4: Simplify right side
    28,745.12x = 641,435,583.34
  5. Step 5: Solve for x
    x = 641,435,583.34/28,745.12
  6. Step 6: Final answer
    x = 22,314.59

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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.