Home / 20,336.43-28,063.76-11,383.50

Finding the Fourth Proportional to 20,336.43, 28,063.76 and 11,383.50

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Solution

The fourth proportional to 20,336.43, 28,063.76 and 11,383.50 is: 15,708.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.43 : 28,063.76 = 11,383.50 : x
  2. Step 2: Convert to fraction form
    20,336.43/28,063.76 = 11,383.50/x
  3. Step 3: Cross multiply
    20,336.43x = 28,063.76 × 11,383.50
  4. Step 4: Simplify right side
    20,336.43x = 319,463,755.04
  5. Step 5: Solve for x
    x = 319,463,755.04/20,336.43
  6. Step 6: Final answer
    x = 15,708.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.