Home / 18,178.52-27,211.60-15,521.72

Finding the Fourth Proportional to 18,178.52, 27,211.60 and 15,521.72

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Solution

The fourth proportional to 18,178.52, 27,211.60 and 15,521.72 is: 23,234.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178.52 : 27,211.60 = 15,521.72 : x
  2. Step 2: Convert to fraction form
    18,178.52/27,211.60 = 15,521.72/x
  3. Step 3: Cross multiply
    18,178.52x = 27,211.60 × 15,521.72
  4. Step 4: Simplify right side
    18,178.52x = 422,370,835.95
  5. Step 5: Solve for x
    x = 422,370,835.95/18,178.52
  6. Step 6: Final answer
    x = 23,234.61

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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.