Home / 20,252.08-30,379.20-6,400

Finding the Fourth Proportional to 20,252.08, 30,379.20 and 6,400

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Solution

The fourth proportional to 20,252.08, 30,379.20 and 6,400 is: 9,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.08 : 30,379.20 = 6,400 : x
  2. Step 2: Convert to fraction form
    20,252.08/30,379.20 = 6,400/x
  3. Step 3: Cross multiply
    20,252.08x = 30,379.20 × 6,400
  4. Step 4: Simplify right side
    20,252.08x = 194,426,880
  5. Step 5: Solve for x
    x = 194,426,880/20,252.08
  6. Step 6: Final answer
    x = 9,600.34

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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.