Home / 28,630.58-42,949.94-11,102.18

Finding the Fourth Proportional to 28,630.58, 42,949.94 and 11,102.18

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Solution

The fourth proportional to 28,630.58, 42,949.94 and 11,102.18 is: 16,654.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,630.58 : 42,949.94 = 11,102.18 : x
  2. Step 2: Convert to fraction form
    28,630.58/42,949.94 = 11,102.18/x
  3. Step 3: Cross multiply
    28,630.58x = 42,949.94 × 11,102.18
  4. Step 4: Simplify right side
    28,630.58x = 476,837,964.87
  5. Step 5: Solve for x
    x = 476,837,964.87/28,630.58
  6. Step 6: Final answer
    x = 16,654.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.