Home / 28,748.86-39,673.36-16,173.61

Finding the Fourth Proportional to 28,748.86, 39,673.36 and 16,173.61

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Solution

The fourth proportional to 28,748.86, 39,673.36 and 16,173.61 is: 22,319.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.86 : 39,673.36 = 16,173.61 : x
  2. Step 2: Convert to fraction form
    28,748.86/39,673.36 = 16,173.61/x
  3. Step 3: Cross multiply
    28,748.86x = 39,673.36 × 16,173.61
  4. Step 4: Simplify right side
    28,748.86x = 641,661,452.03
  5. Step 5: Solve for x
    x = 641,661,452.03/28,748.86
  6. Step 6: Final answer
    x = 22,319.54

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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.