Home / 20,329.38-28,184.36-19,607.67

Finding the Fourth Proportional to 20,329.38, 28,184.36 and 19,607.67

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Solution

The fourth proportional to 20,329.38, 28,184.36 and 19,607.67 is: 27,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.38 : 28,184.36 = 19,607.67 : x
  2. Step 2: Convert to fraction form
    20,329.38/28,184.36 = 19,607.67/x
  3. Step 3: Cross multiply
    20,329.38x = 28,184.36 × 19,607.67
  4. Step 4: Simplify right side
    20,329.38x = 552,629,532.00
  5. Step 5: Solve for x
    x = 552,629,532.00/20,329.38
  6. Step 6: Final answer
    x = 27,183.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.