Home / 28,469.24-39,286.86-15,893.96

Finding the Fourth Proportional to 28,469.24, 39,286.86 and 15,893.96

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Solution

The fourth proportional to 28,469.24, 39,286.86 and 15,893.96 is: 21,933.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469.24 : 39,286.86 = 15,893.96 : x
  2. Step 2: Convert to fraction form
    28,469.24/39,286.86 = 15,893.96/x
  3. Step 3: Cross multiply
    28,469.24x = 39,286.86 × 15,893.96
  4. Step 4: Simplify right side
    28,469.24x = 624,423,781.37
  5. Step 5: Solve for x
    x = 624,423,781.37/28,469.24
  6. Step 6: Final answer
    x = 21,933.28

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1.5x scale

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.