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Finding the Fourth Proportional to 30,483.78, 45,725.37 and 8,296.98

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Solution

The fourth proportional to 30,483.78, 45,725.37 and 8,296.98 is: 12,445.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,483.78 : 45,725.37 = 8,296.98 : x
  2. Step 2: Convert to fraction form
    30,483.78/45,725.37 = 8,296.98/x
  3. Step 3: Cross multiply
    30,483.78x = 45,725.37 × 8,296.98
  4. Step 4: Simplify right side
    30,483.78x = 379,382,480.38
  5. Step 5: Solve for x
    x = 379,382,480.38/30,483.78
  6. Step 6: Final answer
    x = 12,445.39

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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.