Home / 18,825.48-28,242.27-5,679.18

Finding the Fourth Proportional to 18,825.48, 28,242.27 and 5,679.18

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Solution

The fourth proportional to 18,825.48, 28,242.27 and 5,679.18 is: 8,519.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.48 : 28,242.27 = 5,679.18 : x
  2. Step 2: Convert to fraction form
    18,825.48/28,242.27 = 5,679.18/x
  3. Step 3: Cross multiply
    18,825.48x = 28,242.27 × 5,679.18
  4. Step 4: Simplify right side
    18,825.48x = 160,392,934.94
  5. Step 5: Solve for x
    x = 160,392,934.94/18,825.48
  6. Step 6: Final answer
    x = 8,519.99

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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.