Home / 28,745.28-39,668.08-16,170

Finding the Fourth Proportional to 28,745.28, 39,668.08 and 16,170

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Solution

The fourth proportional to 28,745.28, 39,668.08 and 16,170 is: 22,314.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,745.28 : 39,668.08 = 16,170 : x
  2. Step 2: Convert to fraction form
    28,745.28/39,668.08 = 16,170/x
  3. Step 3: Cross multiply
    28,745.28x = 39,668.08 × 16,170
  4. Step 4: Simplify right side
    28,745.28x = 641,432,853.60
  5. Step 5: Solve for x
    x = 641,432,853.60/28,745.28
  6. Step 6: Final answer
    x = 22,314.37

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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.