Home / 21,758.35-30,026.26-12,198.19

Finding the Fourth Proportional to 21,758.35, 30,026.26 and 12,198.19

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Solution

The fourth proportional to 21,758.35, 30,026.26 and 12,198.19 is: 16,833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,758.35 : 30,026.26 = 12,198.19 : x
  2. Step 2: Convert to fraction form
    21,758.35/30,026.26 = 12,198.19/x
  3. Step 3: Cross multiply
    21,758.35x = 30,026.26 × 12,198.19
  4. Step 4: Simplify right side
    21,758.35x = 366,265,813.35
  5. Step 5: Solve for x
    x = 366,265,813.35/21,758.35
  6. Step 6: Final answer
    x = 16,833.35

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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.