Home / 30,260.43-41,730.07-20,189.28

Finding the Fourth Proportional to 30,260.43, 41,730.07 and 20,189.28

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Solution

The fourth proportional to 30,260.43, 41,730.07 and 20,189.28 is: 27,841.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,260.43 : 41,730.07 = 20,189.28 : x
  2. Step 2: Convert to fraction form
    30,260.43/41,730.07 = 20,189.28/x
  3. Step 3: Cross multiply
    30,260.43x = 41,730.07 × 20,189.28
  4. Step 4: Simplify right side
    30,260.43x = 842,500,067.65
  5. Step 5: Solve for x
    x = 842,500,067.65/30,260.43
  6. Step 6: Final answer
    x = 27,841.64

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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.