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Finding the Fourth Proportional to 34,788.96, 48,006 and 20,645.28

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Solution

The fourth proportional to 34,788.96, 48,006 and 20,645.28 is: 28,488.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,788.96 : 48,006 = 20,645.28 : x
  2. Step 2: Convert to fraction form
    34,788.96/48,006 = 20,645.28/x
  3. Step 3: Cross multiply
    34,788.96x = 48,006 × 20,645.28
  4. Step 4: Simplify right side
    34,788.96x = 991,097,311.68
  5. Step 5: Solve for x
    x = 991,097,311.68/34,788.96
  6. Step 6: Final answer
    x = 28,488.85

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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.