Home / 27,979.93-41,968.55-6,919.89

Finding the Fourth Proportional to 27,979.93, 41,968.55 and 6,919.89

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Solution

The fourth proportional to 27,979.93, 41,968.55 and 6,919.89 is: 10,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.93 : 41,968.55 = 6,919.89 : x
  2. Step 2: Convert to fraction form
    27,979.93/41,968.55 = 6,919.89/x
  3. Step 3: Cross multiply
    27,979.93x = 41,968.55 × 6,919.89
  4. Step 4: Simplify right side
    27,979.93x = 290,417,749.46
  5. Step 5: Solve for x
    x = 290,417,749.46/27,979.93
  6. Step 6: Final answer
    x = 10,379.50

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1.5x scale

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.