Home / 28,960.56-39,967.35-16,861.29

Finding the Fourth Proportional to 28,960.56, 39,967.35 and 16,861.29

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Solution

The fourth proportional to 28,960.56, 39,967.35 and 16,861.29 is: 23,269.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,960.56 : 39,967.35 = 16,861.29 : x
  2. Step 2: Convert to fraction form
    28,960.56/39,967.35 = 16,861.29/x
  3. Step 3: Cross multiply
    28,960.56x = 39,967.35 × 16,861.29
  4. Step 4: Simplify right side
    28,960.56x = 673,901,078.88
  5. Step 5: Solve for x
    x = 673,901,078.88/28,960.56
  6. Step 6: Final answer
    x = 23,269.61

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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.