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Finding the Fourth Proportional to 35,091, 48,425.62 and 20,187

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Solution

The fourth proportional to 35,091, 48,425.62 and 20,187 is: 27,858.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,091 : 48,425.62 = 20,187 : x
  2. Step 2: Convert to fraction form
    35,091/48,425.62 = 20,187/x
  3. Step 3: Cross multiply
    35,091x = 48,425.62 × 20,187
  4. Step 4: Simplify right side
    35,091x = 977,567,990.94
  5. Step 5: Solve for x
    x = 977,567,990.94/35,091
  6. Step 6: Final answer
    x = 27,858.08

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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.