Home / 18,829.09-28,243.83-5,681.57

Finding the Fourth Proportional to 18,829.09, 28,243.83 and 5,681.57

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Solution

The fourth proportional to 18,829.09, 28,243.83 and 5,681.57 is: 8,522.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.09 : 28,243.83 = 5,681.57 : x
  2. Step 2: Convert to fraction form
    18,829.09/28,243.83 = 5,681.57/x
  3. Step 3: Cross multiply
    18,829.09x = 28,243.83 × 5,681.57
  4. Step 4: Simplify right side
    18,829.09x = 160,469,297.21
  5. Step 5: Solve for x
    x = 160,469,297.21/18,829.09
  6. Step 6: Final answer
    x = 8,522.41

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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.