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Finding the Fourth Proportional to 30,012.44, 45,022.98 and 9,231.08

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Solution

The fourth proportional to 30,012.44, 45,022.98 and 9,231.08 is: 13,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,012.44 : 45,022.98 = 9,231.08 : x
  2. Step 2: Convert to fraction form
    30,012.44/45,022.98 = 9,231.08/x
  3. Step 3: Cross multiply
    30,012.44x = 45,022.98 × 9,231.08
  4. Step 4: Simplify right side
    30,012.44x = 415,610,730.22
  5. Step 5: Solve for x
    x = 415,610,730.22/30,012.44
  6. Step 6: Final answer
    x = 13,847.95

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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.