Home / 15,428.45-23,137.94-8,028.90

Finding the Fourth Proportional to 15,428.45, 23,137.94 and 8,028.90

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Solution

The fourth proportional to 15,428.45, 23,137.94 and 8,028.90 is: 12,040.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.45 : 23,137.94 = 8,028.90 : x
  2. Step 2: Convert to fraction form
    15,428.45/23,137.94 = 8,028.90/x
  3. Step 3: Cross multiply
    15,428.45x = 23,137.94 × 8,028.90
  4. Step 4: Simplify right side
    15,428.45x = 185,772,226.54
  5. Step 5: Solve for x
    x = 185,772,226.54/15,428.45
  6. Step 6: Final answer
    x = 12,040.89

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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.