Home / 27,270.80-40,876.28-15,558.48

Finding the Fourth Proportional to 27,270.80, 40,876.28 and 15,558.48

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Solution

The fourth proportional to 27,270.80, 40,876.28 and 15,558.48 is: 23,320.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,270.80 : 40,876.28 = 15,558.48 : x
  2. Step 2: Convert to fraction form
    27,270.80/40,876.28 = 15,558.48/x
  3. Step 3: Cross multiply
    27,270.80x = 40,876.28 × 15,558.48
  4. Step 4: Simplify right side
    27,270.80x = 635,972,784.85
  5. Step 5: Solve for x
    x = 635,972,784.85/27,270.80
  6. Step 6: Final answer
    x = 23,320.65

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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.