Home / 10,021.31-15,027.81-3,780.26

Finding the Fourth Proportional to 10,021.31, 15,027.81 and 3,780.26

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Solution

The fourth proportional to 10,021.31, 15,027.81 and 3,780.26 is: 5,668.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.31 : 15,027.81 = 3,780.26 : x
  2. Step 2: Convert to fraction form
    10,021.31/15,027.81 = 3,780.26/x
  3. Step 3: Cross multiply
    10,021.31x = 15,027.81 × 3,780.26
  4. Step 4: Simplify right side
    10,021.31x = 56,809,029.03
  5. Step 5: Solve for x
    x = 56,809,029.03/10,021.31
  6. Step 6: Final answer
    x = 5,668.82

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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.