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Finding the Fourth Proportional to 34,893.83, 48,153.71 and 18,978.39

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Solution

The fourth proportional to 34,893.83, 48,153.71 and 18,978.39 is: 26,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,893.83 : 48,153.71 = 18,978.39 : x
  2. Step 2: Convert to fraction form
    34,893.83/48,153.71 = 18,978.39/x
  3. Step 3: Cross multiply
    34,893.83x = 48,153.71 × 18,978.39
  4. Step 4: Simplify right side
    34,893.83x = 913,879,793.43
  5. Step 5: Solve for x
    x = 913,879,793.43/34,893.83
  6. Step 6: Final answer
    x = 26,190.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.