Home / 15,511.56-23,147.49-13,850.28

Finding the Fourth Proportional to 15,511.56, 23,147.49 and 13,850.28

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Solution

The fourth proportional to 15,511.56, 23,147.49 and 13,850.28 is: 20,668.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,511.56 : 23,147.49 = 13,850.28 : x
  2. Step 2: Convert to fraction form
    15,511.56/23,147.49 = 13,850.28/x
  3. Step 3: Cross multiply
    15,511.56x = 23,147.49 × 13,850.28
  4. Step 4: Simplify right side
    15,511.56x = 320,599,217.80
  5. Step 5: Solve for x
    x = 320,599,217.80/15,511.56
  6. Step 6: Final answer
    x = 20,668.41

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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.