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Finding the Fourth Proportional to 23,940, 33,037.20 and 13,185.45

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Solution

The fourth proportional to 23,940, 33,037.20 and 13,185.45 is: 18,195.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,940 : 33,037.20 = 13,185.45 : x
  2. Step 2: Convert to fraction form
    23,940/33,037.20 = 13,185.45/x
  3. Step 3: Cross multiply
    23,940x = 33,037.20 × 13,185.45
  4. Step 4: Simplify right side
    23,940x = 435,610,348.74
  5. Step 5: Solve for x
    x = 435,610,348.74/23,940
  6. Step 6: Final answer
    x = 18,195.92

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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.