Home / 28,383.16-39,168.78-16,453.42

Finding the Fourth Proportional to 28,383.16, 39,168.78 and 16,453.42

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Solution

The fourth proportional to 28,383.16, 39,168.78 and 16,453.42 is: 22,705.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.16 : 39,168.78 = 16,453.42 : x
  2. Step 2: Convert to fraction form
    28,383.16/39,168.78 = 16,453.42/x
  3. Step 3: Cross multiply
    28,383.16x = 39,168.78 × 16,453.42
  4. Step 4: Simplify right side
    28,383.16x = 644,460,388.23
  5. Step 5: Solve for x
    x = 644,460,388.23/28,383.16
  6. Step 6: Final answer
    x = 22,705.73

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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.