Home / 27,105.37-40,661.93-8,387.01

Finding the Fourth Proportional to 27,105.37, 40,661.93 and 8,387.01

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Solution

The fourth proportional to 27,105.37, 40,661.93 and 8,387.01 is: 12,581.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,105.37 : 40,661.93 = 8,387.01 : x
  2. Step 2: Convert to fraction form
    27,105.37/40,661.93 = 8,387.01/x
  3. Step 3: Cross multiply
    27,105.37x = 40,661.93 × 8,387.01
  4. Step 4: Simplify right side
    27,105.37x = 341,032,013.53
  5. Step 5: Solve for x
    x = 341,032,013.53/27,105.37
  6. Step 6: Final answer
    x = 12,581.71

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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.