Home / 28,868.85-39,839.04-16,771.68

Finding the Fourth Proportional to 28,868.85, 39,839.04 and 16,771.68

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Solution

The fourth proportional to 28,868.85, 39,839.04 and 16,771.68 is: 23,144.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.85 : 39,839.04 = 16,771.68 : x
  2. Step 2: Convert to fraction form
    28,868.85/39,839.04 = 16,771.68/x
  3. Step 3: Cross multiply
    28,868.85x = 39,839.04 × 16,771.68
  4. Step 4: Simplify right side
    28,868.85x = 668,167,630.39
  5. Step 5: Solve for x
    x = 668,167,630.39/28,868.85
  6. Step 6: Final answer
    x = 23,144.93

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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.