Home / 18,021.52-27,023.36-5,538.56

Finding the Fourth Proportional to 18,021.52, 27,023.36 and 5,538.56

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Solution

The fourth proportional to 18,021.52, 27,023.36 and 5,538.56 is: 8,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.52 : 27,023.36 = 5,538.56 : x
  2. Step 2: Convert to fraction form
    18,021.52/27,023.36 = 5,538.56/x
  3. Step 3: Cross multiply
    18,021.52x = 27,023.36 × 5,538.56
  4. Step 4: Simplify right side
    18,021.52x = 149,670,500.76
  5. Step 5: Solve for x
    x = 149,670,500.76/18,021.52
  6. Step 6: Final answer
    x = 8,305.10

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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.