Home / 28,929.92-43,365.20-14,120.60

Finding the Fourth Proportional to 28,929.92, 43,365.20 and 14,120.60

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Solution

The fourth proportional to 28,929.92, 43,365.20 and 14,120.60 is: 21,166.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,929.92 : 43,365.20 = 14,120.60 : x
  2. Step 2: Convert to fraction form
    28,929.92/43,365.20 = 14,120.60/x
  3. Step 3: Cross multiply
    28,929.92x = 43,365.20 × 14,120.60
  4. Step 4: Simplify right side
    28,929.92x = 612,342,355.69
  5. Step 5: Solve for x
    x = 612,342,355.69/28,929.92
  6. Step 6: Final answer
    x = 21,166.41

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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.