Home / 20,584.77-28,381.14-16,804.09

Finding the Fourth Proportional to 20,584.77, 28,381.14 and 16,804.09

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Solution

The fourth proportional to 20,584.77, 28,381.14 and 16,804.09 is: 23,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.77 : 28,381.14 = 16,804.09 : x
  2. Step 2: Convert to fraction form
    20,584.77/28,381.14 = 16,804.09/x
  3. Step 3: Cross multiply
    20,584.77x = 28,381.14 × 16,804.09
  4. Step 4: Simplify right side
    20,584.77x = 476,919,230.86
  5. Step 5: Solve for x
    x = 476,919,230.86/20,584.77
  6. Step 6: Final answer
    x = 23,168.55

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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.