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Finding the Fourth Proportional to 30,576.03, 45,864.06 and 8,389.54

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Solution

The fourth proportional to 30,576.03, 45,864.06 and 8,389.54 is: 12,584.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,576.03 : 45,864.06 = 8,389.54 : x
  2. Step 2: Convert to fraction form
    30,576.03/45,864.06 = 8,389.54/x
  3. Step 3: Cross multiply
    30,576.03x = 45,864.06 × 8,389.54
  4. Step 4: Simplify right side
    30,576.03x = 384,778,365.93
  5. Step 5: Solve for x
    x = 384,778,365.93/30,576.03
  6. Step 6: Final answer
    x = 12,584.31

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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.