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Finding the Fourth Proportional to 35,256, 48,654.72 and 20,352

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Solution

The fourth proportional to 35,256, 48,654.72 and 20,352 is: 28,086.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,256 : 48,654.72 = 20,352 : x
  2. Step 2: Convert to fraction form
    35,256/48,654.72 = 20,352/x
  3. Step 3: Cross multiply
    35,256x = 48,654.72 × 20,352
  4. Step 4: Simplify right side
    35,256x = 990,220,861.44
  5. Step 5: Solve for x
    x = 990,220,861.44/35,256
  6. Step 6: Final answer
    x = 28,086.59

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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.