Home / 28,640.37-39,523.94-15,893.61

Finding the Fourth Proportional to 28,640.37, 39,523.94 and 15,893.61

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Solution

The fourth proportional to 28,640.37, 39,523.94 and 15,893.61 is: 21,933.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,640.37 : 39,523.94 = 15,893.61 : x
  2. Step 2: Convert to fraction form
    28,640.37/39,523.94 = 15,893.61/x
  3. Step 3: Cross multiply
    28,640.37x = 39,523.94 × 15,893.61
  4. Step 4: Simplify right side
    28,640.37x = 628,178,088.02
  5. Step 5: Solve for x
    x = 628,178,088.02/28,640.37
  6. Step 6: Final answer
    x = 21,933.31

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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.