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Finding the Fourth Proportional to 30,044.49, 45,073.20 and 8,986.20

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Solution

The fourth proportional to 30,044.49, 45,073.20 and 8,986.20 is: 13,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,044.49 : 45,073.20 = 8,986.20 : x
  2. Step 2: Convert to fraction form
    30,044.49/45,073.20 = 8,986.20/x
  3. Step 3: Cross multiply
    30,044.49x = 45,073.20 × 8,986.20
  4. Step 4: Simplify right side
    30,044.49x = 405,036,789.84
  5. Step 5: Solve for x
    x = 405,036,789.84/30,044.49
  6. Step 6: Final answer
    x = 13,481.23

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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.