Home / 27,431.40-41,135.44-10,788.78

Finding the Fourth Proportional to 27,431.40, 41,135.44 and 10,788.78

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Solution

The fourth proportional to 27,431.40, 41,135.44 and 10,788.78 is: 16,178.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,431.40 : 41,135.44 = 10,788.78 : x
  2. Step 2: Convert to fraction form
    27,431.40/41,135.44 = 10,788.78/x
  3. Step 3: Cross multiply
    27,431.40x = 41,135.44 × 10,788.78
  4. Step 4: Simplify right side
    27,431.40x = 443,801,212.36
  5. Step 5: Solve for x
    x = 443,801,212.36/27,431.40
  6. Step 6: Final answer
    x = 16,178.58

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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.