Home / 20,003.14-30,004.98-18,785.44

Finding the Fourth Proportional to 20,003.14, 30,004.98 and 18,785.44

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Solution

The fourth proportional to 20,003.14, 30,004.98 and 18,785.44 is: 28,178.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,003.14 : 30,004.98 = 18,785.44 : x
  2. Step 2: Convert to fraction form
    20,003.14/30,004.98 = 18,785.44/x
  3. Step 3: Cross multiply
    20,003.14x = 30,004.98 × 18,785.44
  4. Step 4: Simplify right side
    20,003.14x = 563,656,751.49
  5. Step 5: Solve for x
    x = 563,656,751.49/20,003.14
  6. Step 6: Final answer
    x = 28,178.41

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Similar ratio
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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.