Home / 30,277.90-41,756.92-21,198.61

Finding the Fourth Proportional to 30,277.90, 41,756.92 and 21,198.61

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Solution

The fourth proportional to 30,277.90, 41,756.92 and 21,198.61 is: 29,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,277.90 : 41,756.92 = 21,198.61 : x
  2. Step 2: Convert to fraction form
    30,277.90/41,756.92 = 21,198.61/x
  3. Step 3: Cross multiply
    30,277.90x = 41,756.92 × 21,198.61
  4. Step 4: Simplify right side
    30,277.90x = 885,188,661.08
  5. Step 5: Solve for x
    x = 885,188,661.08/30,277.90
  6. Step 6: Final answer
    x = 29,235.47

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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.