Home / 28,884.42-43,328.16-8,109.54

Finding the Fourth Proportional to 28,884.42, 43,328.16 and 8,109.54

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Solution

The fourth proportional to 28,884.42, 43,328.16 and 8,109.54 is: 12,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,884.42 : 43,328.16 = 8,109.54 : x
  2. Step 2: Convert to fraction form
    28,884.42/43,328.16 = 8,109.54/x
  3. Step 3: Cross multiply
    28,884.42x = 43,328.16 × 8,109.54
  4. Step 4: Simplify right side
    28,884.42x = 351,371,446.65
  5. Step 5: Solve for x
    x = 351,371,446.65/28,884.42
  6. Step 6: Final answer
    x = 12,164.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.