Home / 28,970.73-43,477.97-21,199.59

Finding the Fourth Proportional to 28,970.73, 43,477.97 and 21,199.59

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Solution

The fourth proportional to 28,970.73, 43,477.97 and 21,199.59 is: 31,815.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,970.73 : 43,477.97 = 21,199.59 : x
  2. Step 2: Convert to fraction form
    28,970.73/43,477.97 = 21,199.59/x
  3. Step 3: Cross multiply
    28,970.73x = 43,477.97 × 21,199.59
  4. Step 4: Simplify right side
    28,970.73x = 921,715,032.03
  5. Step 5: Solve for x
    x = 921,715,032.03/28,970.73
  6. Step 6: Final answer
    x = 31,815.39

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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.