Home / 38,383.20-57,607.20-18,678.60

Finding the Fourth Proportional to 38,383.20, 57,607.20 and 18,678.60

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Solution

The fourth proportional to 38,383.20, 57,607.20 and 18,678.60 is: 28,033.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,383.20 : 57,607.20 = 18,678.60 : x
  2. Step 2: Convert to fraction form
    38,383.20/57,607.20 = 18,678.60/x
  3. Step 3: Cross multiply
    38,383.20x = 57,607.20 × 18,678.60
  4. Step 4: Simplify right side
    38,383.20x = 1,076,021,845.92
  5. Step 5: Solve for x
    x = 1,076,021,845.92/38,383.20
  6. Step 6: Final answer
    x = 28,033.67

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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.