Home / 20,348.50-30,529.67-12,843.33

Finding the Fourth Proportional to 20,348.50, 30,529.67 and 12,843.33

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Solution

The fourth proportional to 20,348.50, 30,529.67 and 12,843.33 is: 19,269.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.50 : 30,529.67 = 12,843.33 : x
  2. Step 2: Convert to fraction form
    20,348.50/30,529.67 = 12,843.33/x
  3. Step 3: Cross multiply
    20,348.50x = 30,529.67 × 12,843.33
  4. Step 4: Simplify right side
    20,348.50x = 392,102,521.33
  5. Step 5: Solve for x
    x = 392,102,521.33/20,348.50
  6. Step 6: Final answer
    x = 19,269.36

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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.