Home / 28,168.65-38,872.67-16,837.60

Finding the Fourth Proportional to 28,168.65, 38,872.67 and 16,837.60

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Solution

The fourth proportional to 28,168.65, 38,872.67 and 16,837.60 is: 23,235.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168.65 : 38,872.67 = 16,837.60 : x
  2. Step 2: Convert to fraction form
    28,168.65/38,872.67 = 16,837.60/x
  3. Step 3: Cross multiply
    28,168.65x = 38,872.67 × 16,837.60
  4. Step 4: Simplify right side
    28,168.65x = 654,522,434.35
  5. Step 5: Solve for x
    x = 654,522,434.35/28,168.65
  6. Step 6: Final answer
    x = 23,235.85

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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.