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Finding the Fourth Proportional to 20,010.99, 30,018 and 5,969.91

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Solution

The fourth proportional to 20,010.99, 30,018 and 5,969.91 is: 8,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.99 : 30,018 = 5,969.91 : x
  2. Step 2: Convert to fraction form
    20,010.99/30,018 = 5,969.91/x
  3. Step 3: Cross multiply
    20,010.99x = 30,018 × 5,969.91
  4. Step 4: Simplify right side
    20,010.99x = 179,204,758.38
  5. Step 5: Solve for x
    x = 179,204,758.38/20,010.99
  6. Step 6: Final answer
    x = 8,955.32

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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.