Home / 27,980.19-41,972.11-11,339.87

Finding the Fourth Proportional to 27,980.19, 41,972.11 and 11,339.87

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Solution

The fourth proportional to 27,980.19, 41,972.11 and 11,339.87 is: 17,010.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,980.19 : 41,972.11 = 11,339.87 : x
  2. Step 2: Convert to fraction form
    27,980.19/41,972.11 = 11,339.87/x
  3. Step 3: Cross multiply
    27,980.19x = 41,972.11 × 11,339.87
  4. Step 4: Simplify right side
    27,980.19x = 475,958,032.82
  5. Step 5: Solve for x
    x = 475,958,032.82/27,980.19
  6. Step 6: Final answer
    x = 17,010.54

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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.