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Finding the Fourth Proportional to 35,257, 48,654.68 and 20,353

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Solution

The fourth proportional to 35,257, 48,654.68 and 20,353 is: 28,087.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,257 : 48,654.68 = 20,353 : x
  2. Step 2: Convert to fraction form
    35,257/48,654.68 = 20,353/x
  3. Step 3: Cross multiply
    35,257x = 48,654.68 × 20,353
  4. Step 4: Simplify right side
    35,257x = 990,268,702.04
  5. Step 5: Solve for x
    x = 990,268,702.04/35,257
  6. Step 6: Final answer
    x = 28,087.15

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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.