Home / 18,041.52-27,021.20-12,469.60

Finding the Fourth Proportional to 18,041.52, 27,021.20 and 12,469.60

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Solution

The fourth proportional to 18,041.52, 27,021.20 and 12,469.60 is: 18,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,041.52 : 27,021.20 = 12,469.60 : x
  2. Step 2: Convert to fraction form
    18,041.52/27,021.20 = 12,469.60/x
  3. Step 3: Cross multiply
    18,041.52x = 27,021.20 × 12,469.60
  4. Step 4: Simplify right side
    18,041.52x = 336,943,555.52
  5. Step 5: Solve for x
    x = 336,943,555.52/18,041.52
  6. Step 6: Final answer
    x = 18,676.01

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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.