Home / 26,678.97-40,021.19-11,886.65

Finding the Fourth Proportional to 26,678.97, 40,021.19 and 11,886.65

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Solution

The fourth proportional to 26,678.97, 40,021.19 and 11,886.65 is: 17,831.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,678.97 : 40,021.19 = 11,886.65 : x
  2. Step 2: Convert to fraction form
    26,678.97/40,021.19 = 11,886.65/x
  3. Step 3: Cross multiply
    26,678.97x = 40,021.19 × 11,886.65
  4. Step 4: Simplify right side
    26,678.97x = 475,717,813.23
  5. Step 5: Solve for x
    x = 475,717,813.23/26,678.97
  6. Step 6: Final answer
    x = 17,831.19

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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.