Home / 20,183.16-30,145.56-18,280.62

Finding the Fourth Proportional to 20,183.16, 30,145.56 and 18,280.62

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Solution

The fourth proportional to 20,183.16, 30,145.56 and 18,280.62 is: 27,303.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.16 : 30,145.56 = 18,280.62 : x
  2. Step 2: Convert to fraction form
    20,183.16/30,145.56 = 18,280.62/x
  3. Step 3: Cross multiply
    20,183.16x = 30,145.56 × 18,280.62
  4. Step 4: Simplify right side
    20,183.16x = 551,079,556.71
  5. Step 5: Solve for x
    x = 551,079,556.71/20,183.16
  6. Step 6: Final answer
    x = 27,303.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.