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Finding the Fourth Proportional to 30,087.96, 45,139.22 and 9,027.96

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Solution

The fourth proportional to 30,087.96, 45,139.22 and 9,027.96 is: 13,544.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,087.96 : 45,139.22 = 9,027.96 : x
  2. Step 2: Convert to fraction form
    30,087.96/45,139.22 = 9,027.96/x
  3. Step 3: Cross multiply
    30,087.96x = 45,139.22 × 9,027.96
  4. Step 4: Simplify right side
    30,087.96x = 407,515,072.59
  5. Step 5: Solve for x
    x = 407,515,072.59/30,087.96
  6. Step 6: Final answer
    x = 13,544.12

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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.