Home / 20,182.81-30,273.89-9,081.65

Finding the Fourth Proportional to 20,182.81, 30,273.89 and 9,081.65

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Solution

The fourth proportional to 20,182.81, 30,273.89 and 9,081.65 is: 13,622.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.81 : 30,273.89 = 9,081.65 : x
  2. Step 2: Convert to fraction form
    20,182.81/30,273.89 = 9,081.65/x
  3. Step 3: Cross multiply
    20,182.81x = 30,273.89 × 9,081.65
  4. Step 4: Simplify right side
    20,182.81x = 274,936,873.12
  5. Step 5: Solve for x
    x = 274,936,873.12/20,182.81
  6. Step 6: Final answer
    x = 13,622.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.