Home / 28,788.35-43,172.89-11,014.88

Finding the Fourth Proportional to 28,788.35, 43,172.89 and 11,014.88

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Solution

The fourth proportional to 28,788.35, 43,172.89 and 11,014.88 is: 16,518.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.35 : 43,172.89 = 11,014.88 : x
  2. Step 2: Convert to fraction form
    28,788.35/43,172.89 = 11,014.88/x
  3. Step 3: Cross multiply
    28,788.35x = 43,172.89 × 11,014.88
  4. Step 4: Simplify right side
    28,788.35x = 475,543,959.20
  5. Step 5: Solve for x
    x = 475,543,959.20/28,788.35
  6. Step 6: Final answer
    x = 16,518.62

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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.