Home / 28,199.40-38,912.46-16,866.60

Finding the Fourth Proportional to 28,199.40, 38,912.46 and 16,866.60

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Solution

The fourth proportional to 28,199.40, 38,912.46 and 16,866.60 is: 23,274.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,199.40 : 38,912.46 = 16,866.60 : x
  2. Step 2: Convert to fraction form
    28,199.40/38,912.46 = 16,866.60/x
  3. Step 3: Cross multiply
    28,199.40x = 38,912.46 × 16,866.60
  4. Step 4: Simplify right side
    28,199.40x = 656,320,897.84
  5. Step 5: Solve for x
    x = 656,320,897.84/28,199.40
  6. Step 6: Final answer
    x = 23,274.29

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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.