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Finding the Fourth Proportional to 20,176.99, 30,270.33 and 6,325.99

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Solution

The fourth proportional to 20,176.99, 30,270.33 and 6,325.99 is: 9,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.99 : 30,270.33 = 6,325.99 : x
  2. Step 2: Convert to fraction form
    20,176.99/30,270.33 = 6,325.99/x
  3. Step 3: Cross multiply
    20,176.99x = 30,270.33 × 6,325.99
  4. Step 4: Simplify right side
    20,176.99x = 191,489,804.88
  5. Step 5: Solve for x
    x = 191,489,804.88/20,176.99
  6. Step 6: Final answer
    x = 9,490.50

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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.