Home / 18,028.05-27,043.43-4,880.21

Finding the Fourth Proportional to 18,028.05, 27,043.43 and 4,880.21

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Solution

The fourth proportional to 18,028.05, 27,043.43 and 4,880.21 is: 7,320.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028.05 : 27,043.43 = 4,880.21 : x
  2. Step 2: Convert to fraction form
    18,028.05/27,043.43 = 4,880.21/x
  3. Step 3: Cross multiply
    18,028.05x = 27,043.43 × 4,880.21
  4. Step 4: Simplify right side
    18,028.05x = 131,977,457.90
  5. Step 5: Solve for x
    x = 131,977,457.90/18,028.05
  6. Step 6: Final answer
    x = 7,320.67

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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.