Home / 20,189.94-30,289.71-6,338.94

Finding the Fourth Proportional to 20,189.94, 30,289.71 and 6,338.94

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Solution

The fourth proportional to 20,189.94, 30,289.71 and 6,338.94 is: 9,509.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.94 : 30,289.71 = 6,338.94 : x
  2. Step 2: Convert to fraction form
    20,189.94/30,289.71 = 6,338.94/x
  3. Step 3: Cross multiply
    20,189.94x = 30,289.71 × 6,338.94
  4. Step 4: Simplify right side
    20,189.94x = 192,004,654.31
  5. Step 5: Solve for x
    x = 192,004,654.31/20,189.94
  6. Step 6: Final answer
    x = 9,509.92

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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.