Home / 18,628.89-27,943.29-5,481.24

Finding the Fourth Proportional to 18,628.89, 27,943.29 and 5,481.24

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Solution

The fourth proportional to 18,628.89, 27,943.29 and 5,481.24 is: 8,221.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.89 : 27,943.29 = 5,481.24 : x
  2. Step 2: Convert to fraction form
    18,628.89/27,943.29 = 5,481.24/x
  3. Step 3: Cross multiply
    18,628.89x = 27,943.29 × 5,481.24
  4. Step 4: Simplify right side
    18,628.89x = 153,163,878.88
  5. Step 5: Solve for x
    x = 153,163,878.88/18,628.89
  6. Step 6: Final answer
    x = 8,221.85

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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.