Home / 19,843.22-27,383.55-10,890.87

Finding the Fourth Proportional to 19,843.22, 27,383.55 and 10,890.87

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Solution

The fourth proportional to 19,843.22, 27,383.55 and 10,890.87 is: 15,029.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.22 : 27,383.55 = 10,890.87 : x
  2. Step 2: Convert to fraction form
    19,843.22/27,383.55 = 10,890.87/x
  3. Step 3: Cross multiply
    19,843.22x = 27,383.55 × 10,890.87
  4. Step 4: Simplify right side
    19,843.22x = 298,230,683.19
  5. Step 5: Solve for x
    x = 298,230,683.19/19,843.22
  6. Step 6: Final answer
    x = 15,029.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.