Home / 28,200.65-38,915.73-16,863.46

Finding the Fourth Proportional to 28,200.65, 38,915.73 and 16,863.46

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Solution

The fourth proportional to 28,200.65, 38,915.73 and 16,863.46 is: 23,270.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,200.65 : 38,915.73 = 16,863.46 : x
  2. Step 2: Convert to fraction form
    28,200.65/38,915.73 = 16,863.46/x
  3. Step 3: Cross multiply
    28,200.65x = 38,915.73 × 16,863.46
  4. Step 4: Simplify right side
    28,200.65x = 656,253,758.94
  5. Step 5: Solve for x
    x = 656,253,758.94/28,200.65
  6. Step 6: Final answer
    x = 23,270.88

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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.