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Finding the Fourth Proportional to 30,555.66, 45,833.12 and 8,369.02

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Solution

The fourth proportional to 30,555.66, 45,833.12 and 8,369.02 is: 12,553.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,555.66 : 45,833.12 = 8,369.02 : x
  2. Step 2: Convert to fraction form
    30,555.66/45,833.12 = 8,369.02/x
  3. Step 3: Cross multiply
    30,555.66x = 45,833.12 × 8,369.02
  4. Step 4: Simplify right side
    30,555.66x = 383,578,297.94
  5. Step 5: Solve for x
    x = 383,578,297.94/30,555.66
  6. Step 6: Final answer
    x = 12,553.43

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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.