Home / 20,122.71-30,183.59-6,974.93

Finding the Fourth Proportional to 20,122.71, 30,183.59 and 6,974.93

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Solution

The fourth proportional to 20,122.71, 30,183.59 and 6,974.93 is: 10,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.71 : 30,183.59 = 6,974.93 : x
  2. Step 2: Convert to fraction form
    20,122.71/30,183.59 = 6,974.93/x
  3. Step 3: Cross multiply
    20,122.71x = 30,183.59 × 6,974.93
  4. Step 4: Simplify right side
    20,122.71x = 210,528,241.61
  5. Step 5: Solve for x
    x = 210,528,241.61/20,122.71
  6. Step 6: Final answer
    x = 10,462.22

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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.