Home / 28,383.21-39,168.83-16,453.46

Finding the Fourth Proportional to 28,383.21, 39,168.83 and 16,453.46

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Solution

The fourth proportional to 28,383.21, 39,168.83 and 16,453.46 is: 22,705.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.21 : 39,168.83 = 16,453.46 : x
  2. Step 2: Convert to fraction form
    28,383.21/39,168.83 = 16,453.46/x
  3. Step 3: Cross multiply
    28,383.21x = 39,168.83 × 16,453.46
  4. Step 4: Simplify right side
    28,383.21x = 644,462,777.65
  5. Step 5: Solve for x
    x = 644,462,777.65/28,383.21
  6. Step 6: Final answer
    x = 22,705.77

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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.