Home / 28,716.12-39,630.42-16,142.04

Finding the Fourth Proportional to 28,716.12, 39,630.42 and 16,142.04

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Solution

The fourth proportional to 28,716.12, 39,630.42 and 16,142.04 is: 22,277.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.12 : 39,630.42 = 16,142.04 : x
  2. Step 2: Convert to fraction form
    28,716.12/39,630.42 = 16,142.04/x
  3. Step 3: Cross multiply
    28,716.12x = 39,630.42 × 16,142.04
  4. Step 4: Simplify right side
    28,716.12x = 639,715,824.86
  5. Step 5: Solve for x
    x = 639,715,824.86/28,716.12
  6. Step 6: Final answer
    x = 22,277.24

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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.