Home / 28,763.28-39,684.06-16,185.60

Finding the Fourth Proportional to 28,763.28, 39,684.06 and 16,185.60

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Solution

The fourth proportional to 28,763.28, 39,684.06 and 16,185.60 is: 22,330.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763.28 : 39,684.06 = 16,185.60 : x
  2. Step 2: Convert to fraction form
    28,763.28/39,684.06 = 16,185.60/x
  3. Step 3: Cross multiply
    28,763.28x = 39,684.06 × 16,185.60
  4. Step 4: Simplify right side
    28,763.28x = 642,310,321.54
  5. Step 5: Solve for x
    x = 642,310,321.54/28,763.28
  6. Step 6: Final answer
    x = 22,330.91

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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.