Home / 28,176.39-38,874.60-16,238.09

Finding the Fourth Proportional to 28,176.39, 38,874.60 and 16,238.09

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Solution

The fourth proportional to 28,176.39, 38,874.60 and 16,238.09 is: 22,403.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.39 : 38,874.60 = 16,238.09 : x
  2. Step 2: Convert to fraction form
    28,176.39/38,874.60 = 16,238.09/x
  3. Step 3: Cross multiply
    28,176.39x = 38,874.60 × 16,238.09
  4. Step 4: Simplify right side
    28,176.39x = 631,249,350.70
  5. Step 5: Solve for x
    x = 631,249,350.70/28,176.39
  6. Step 6: Final answer
    x = 22,403.49

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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.