Home / 20,028.98-30,045.50-5,238.02

Finding the Fourth Proportional to 20,028.98, 30,045.50 and 5,238.02

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Solution

The fourth proportional to 20,028.98, 30,045.50 and 5,238.02 is: 7,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.98 : 30,045.50 = 5,238.02 : x
  2. Step 2: Convert to fraction form
    20,028.98/30,045.50 = 5,238.02/x
  3. Step 3: Cross multiply
    20,028.98x = 30,045.50 × 5,238.02
  4. Step 4: Simplify right side
    20,028.98x = 157,379,018.12
  5. Step 5: Solve for x
    x = 157,379,018.12/20,028.98
  6. Step 6: Final answer
    x = 7,857.56

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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.