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Finding the Fourth Proportional to 29,759.96, 41,078.86 and 20,826.12

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Solution

The fourth proportional to 29,759.96, 41,078.86 and 20,826.12 is: 28,747.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,759.96 : 41,078.86 = 20,826.12 : x
  2. Step 2: Convert to fraction form
    29,759.96/41,078.86 = 20,826.12/x
  3. Step 3: Cross multiply
    29,759.96x = 41,078.86 × 20,826.12
  4. Step 4: Simplify right side
    29,759.96x = 855,513,267.82
  5. Step 5: Solve for x
    x = 855,513,267.82/29,759.96
  6. Step 6: Final answer
    x = 28,747.12

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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.