Home / 19,781.12-27,296.88-10,826.90

Finding the Fourth Proportional to 19,781.12, 27,296.88 and 10,826.90

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Solution

The fourth proportional to 19,781.12, 27,296.88 and 10,826.90 is: 14,940.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781.12 : 27,296.88 = 10,826.90 : x
  2. Step 2: Convert to fraction form
    19,781.12/27,296.88 = 10,826.90/x
  3. Step 3: Cross multiply
    19,781.12x = 27,296.88 × 10,826.90
  4. Step 4: Simplify right side
    19,781.12x = 295,540,453.59
  5. Step 5: Solve for x
    x = 295,540,453.59/19,781.12
  6. Step 6: Final answer
    x = 14,940.54

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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.