Home / 27,699.20-41,519.36-12,890.88

Finding the Fourth Proportional to 27,699.20, 41,519.36 and 12,890.88

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Solution

The fourth proportional to 27,699.20, 41,519.36 and 12,890.88 is: 19,322.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,699.20 : 41,519.36 = 12,890.88 : x
  2. Step 2: Convert to fraction form
    27,699.20/41,519.36 = 12,890.88/x
  3. Step 3: Cross multiply
    27,699.20x = 41,519.36 × 12,890.88
  4. Step 4: Simplify right side
    27,699.20x = 535,221,087.44
  5. Step 5: Solve for x
    x = 535,221,087.44/27,699.20
  6. Step 6: Final answer
    x = 19,322.62

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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.