Home / 30,054.97-41,488.61-18,730.05

Finding the Fourth Proportional to 30,054.97, 41,488.61 and 18,730.05

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Solution

The fourth proportional to 30,054.97, 41,488.61 and 18,730.05 is: 25,855.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,054.97 : 41,488.61 = 18,730.05 : x
  2. Step 2: Convert to fraction form
    30,054.97/41,488.61 = 18,730.05/x
  3. Step 3: Cross multiply
    30,054.97x = 41,488.61 × 18,730.05
  4. Step 4: Simplify right side
    30,054.97x = 777,083,739.73
  5. Step 5: Solve for x
    x = 777,083,739.73/30,054.97
  6. Step 6: Final answer
    x = 25,855.42

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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.