Home / 28,237.87-38,968.46-15,662.62

Finding the Fourth Proportional to 28,237.87, 38,968.46 and 15,662.62

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Solution

The fourth proportional to 28,237.87, 38,968.46 and 15,662.62 is: 21,614.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.87 : 38,968.46 = 15,662.62 : x
  2. Step 2: Convert to fraction form
    28,237.87/38,968.46 = 15,662.62/x
  3. Step 3: Cross multiply
    28,237.87x = 38,968.46 × 15,662.62
  4. Step 4: Simplify right side
    28,237.87x = 610,348,180.97
  5. Step 5: Solve for x
    x = 610,348,180.97/28,237.87
  6. Step 6: Final answer
    x = 21,614.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.