Home / 27,957.20-41,935.80-15,515.60

Finding the Fourth Proportional to 27,957.20, 41,935.80 and 15,515.60

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Solution

The fourth proportional to 27,957.20, 41,935.80 and 15,515.60 is: 23,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,957.20 : 41,935.80 = 15,515.60 : x
  2. Step 2: Convert to fraction form
    27,957.20/41,935.80 = 15,515.60/x
  3. Step 3: Cross multiply
    27,957.20x = 41,935.80 × 15,515.60
  4. Step 4: Simplify right side
    27,957.20x = 650,659,098.48
  5. Step 5: Solve for x
    x = 650,659,098.48/27,957.20
  6. Step 6: Final answer
    x = 23,273.40

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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.