Home / 20,369.39-30,553.46-13,749.41

Finding the Fourth Proportional to 20,369.39, 30,553.46 and 13,749.41

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Solution

The fourth proportional to 20,369.39, 30,553.46 and 13,749.41 is: 20,623.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369.39 : 30,553.46 = 13,749.41 : x
  2. Step 2: Convert to fraction form
    20,369.39/30,553.46 = 13,749.41/x
  3. Step 3: Cross multiply
    20,369.39x = 30,553.46 × 13,749.41
  4. Step 4: Simplify right side
    20,369.39x = 420,091,826.94
  5. Step 5: Solve for x
    x = 420,091,826.94/20,369.39
  6. Step 6: Final answer
    x = 20,623.69

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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.