Home / 18,825.63-28,240.91-5,679.33

Finding the Fourth Proportional to 18,825.63, 28,240.91 and 5,679.33

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Solution

The fourth proportional to 18,825.63, 28,240.91 and 5,679.33 is: 8,519.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.63 : 28,240.91 = 5,679.33 : x
  2. Step 2: Convert to fraction form
    18,825.63/28,240.91 = 5,679.33/x
  3. Step 3: Cross multiply
    18,825.63x = 28,240.91 × 5,679.33
  4. Step 4: Simplify right side
    18,825.63x = 160,389,418.99
  5. Step 5: Solve for x
    x = 160,389,418.99/18,825.63
  6. Step 6: Final answer
    x = 8,519.74

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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.