Home / 28,680.44-39,578.90-16,105.16

Finding the Fourth Proportional to 28,680.44, 39,578.90 and 16,105.16

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Solution

The fourth proportional to 28,680.44, 39,578.90 and 16,105.16 is: 22,225.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680.44 : 39,578.90 = 16,105.16 : x
  2. Step 2: Convert to fraction form
    28,680.44/39,578.90 = 16,105.16/x
  3. Step 3: Cross multiply
    28,680.44x = 39,578.90 × 16,105.16
  4. Step 4: Simplify right side
    28,680.44x = 637,424,517.12
  5. Step 5: Solve for x
    x = 637,424,517.12/28,680.44
  6. Step 6: Final answer
    x = 22,225.06

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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.