Home / 20,823.06-31,263.88-12,067.76

Finding the Fourth Proportional to 20,823.06, 31,263.88 and 12,067.76

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Solution

The fourth proportional to 20,823.06, 31,263.88 and 12,067.76 is: 18,118.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823.06 : 31,263.88 = 12,067.76 : x
  2. Step 2: Convert to fraction form
    20,823.06/31,263.88 = 12,067.76/x
  3. Step 3: Cross multiply
    20,823.06x = 31,263.88 × 12,067.76
  4. Step 4: Simplify right side
    20,823.06x = 377,285,000.51
  5. Step 5: Solve for x
    x = 377,285,000.51/20,823.06
  6. Step 6: Final answer
    x = 18,118.61

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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.