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Finding the Fourth Proportional to 34,893.65, 48,151.87 and 18,978.10

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Solution

The fourth proportional to 34,893.65, 48,151.87 and 18,978.10 is: 26,189.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,893.65 : 48,151.87 = 18,978.10 : x
  2. Step 2: Convert to fraction form
    34,893.65/48,151.87 = 18,978.10/x
  3. Step 3: Cross multiply
    34,893.65x = 48,151.87 × 18,978.10
  4. Step 4: Simplify right side
    34,893.65x = 913,830,836.22
  5. Step 5: Solve for x
    x = 913,830,836.22/34,893.65
  6. Step 6: Final answer
    x = 26,189.03

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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.