Home / 27,289.92-40,900.80-11,689.44

Finding the Fourth Proportional to 27,289.92, 40,900.80 and 11,689.44

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Solution

The fourth proportional to 27,289.92, 40,900.80 and 11,689.44 is: 17,519.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,289.92 : 40,900.80 = 11,689.44 : x
  2. Step 2: Convert to fraction form
    27,289.92/40,900.80 = 11,689.44/x
  3. Step 3: Cross multiply
    27,289.92x = 40,900.80 × 11,689.44
  4. Step 4: Simplify right side
    27,289.92x = 478,107,447.55
  5. Step 5: Solve for x
    x = 478,107,447.55/27,289.92
  6. Step 6: Final answer
    x = 17,519.56

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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.