Home / 19,185.58-28,768.56-8,788.42

Finding the Fourth Proportional to 19,185.58, 28,768.56 and 8,788.42

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Solution

The fourth proportional to 19,185.58, 28,768.56 and 8,788.42 is: 13,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.58 : 28,768.56 = 8,788.42 : x
  2. Step 2: Convert to fraction form
    19,185.58/28,768.56 = 8,788.42/x
  3. Step 3: Cross multiply
    19,185.58x = 28,768.56 × 8,788.42
  4. Step 4: Simplify right side
    19,185.58x = 252,830,188.08
  5. Step 5: Solve for x
    x = 252,830,188.08/19,185.58
  6. Step 6: Final answer
    x = 13,178.14

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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.