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Finding the Fourth Proportional to 30,396.54, 45,601.29 and 9,620.22

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Solution

The fourth proportional to 30,396.54, 45,601.29 and 9,620.22 is: 14,432.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,396.54 : 45,601.29 = 9,620.22 : x
  2. Step 2: Convert to fraction form
    30,396.54/45,601.29 = 9,620.22/x
  3. Step 3: Cross multiply
    30,396.54x = 45,601.29 × 9,620.22
  4. Step 4: Simplify right side
    30,396.54x = 438,694,442.08
  5. Step 5: Solve for x
    x = 438,694,442.08/30,396.54
  6. Step 6: Final answer
    x = 14,432.38

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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.