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Finding the Fourth Proportional to 30,005.44, 45,004.01 and 7,817.01

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Solution

The fourth proportional to 30,005.44, 45,004.01 and 7,817.01 is: 11,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.44 : 45,004.01 = 7,817.01 : x
  2. Step 2: Convert to fraction form
    30,005.44/45,004.01 = 7,817.01/x
  3. Step 3: Cross multiply
    30,005.44x = 45,004.01 × 7,817.01
  4. Step 4: Simplify right side
    30,005.44x = 351,796,588.36
  5. Step 5: Solve for x
    x = 351,796,588.36/30,005.44
  6. Step 6: Final answer
    x = 11,724.43

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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.