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Finding the Fourth Proportional to 30,323.82, 45,487.74 and 12,795.14

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Solution

The fourth proportional to 30,323.82, 45,487.74 and 12,795.14 is: 19,193.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,323.82 : 45,487.74 = 12,795.14 : x
  2. Step 2: Convert to fraction form
    30,323.82/45,487.74 = 12,795.14/x
  3. Step 3: Cross multiply
    30,323.82x = 45,487.74 × 12,795.14
  4. Step 4: Simplify right side
    30,323.82x = 582,022,001.58
  5. Step 5: Solve for x
    x = 582,022,001.58/30,323.82
  6. Step 6: Final answer
    x = 19,193.56

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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.