Home / 38,392.20-57,620.70-18,687.60

Finding the Fourth Proportional to 38,392.20, 57,620.70 and 18,687.60

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Solution

The fourth proportional to 38,392.20, 57,620.70 and 18,687.60 is: 28,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,392.20 : 57,620.70 = 18,687.60 : x
  2. Step 2: Convert to fraction form
    38,392.20/57,620.70 = 18,687.60/x
  3. Step 3: Cross multiply
    38,392.20x = 57,620.70 × 18,687.60
  4. Step 4: Simplify right side
    38,392.20x = 1,076,792,593.32
  5. Step 5: Solve for x
    x = 1,076,792,593.32/38,392.20
  6. Step 6: Final answer
    x = 28,047.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.