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Finding the Fourth Proportional to 30,553.94, 45,830.91 and 8,367.13

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Solution

The fourth proportional to 30,553.94, 45,830.91 and 8,367.13 is: 12,550.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,553.94 : 45,830.91 = 8,367.13 : x
  2. Step 2: Convert to fraction form
    30,553.94/45,830.91 = 8,367.13/x
  3. Step 3: Cross multiply
    30,553.94x = 45,830.91 × 8,367.13
  4. Step 4: Simplify right side
    30,553.94x = 383,473,270.65
  5. Step 5: Solve for x
    x = 383,473,270.65/30,553.94
  6. Step 6: Final answer
    x = 12,550.70

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Double scale
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Similar ratio
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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.