Home / 28,781.20-39,717.57-16,845.04

Finding the Fourth Proportional to 28,781.20, 39,717.57 and 16,845.04

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Solution

The fourth proportional to 28,781.20, 39,717.57 and 16,845.04 is: 23,245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.20 : 39,717.57 = 16,845.04 : x
  2. Step 2: Convert to fraction form
    28,781.20/39,717.57 = 16,845.04/x
  3. Step 3: Cross multiply
    28,781.20x = 39,717.57 × 16,845.04
  4. Step 4: Simplify right side
    28,781.20x = 669,044,055.35
  5. Step 5: Solve for x
    x = 669,044,055.35/28,781.20
  6. Step 6: Final answer
    x = 23,245.87

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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.