Home / 47,983.78-72,007.80-16,819.03

Finding the Fourth Proportional to 47,983.78, 72,007.80 and 16,819.03

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Solution

The fourth proportional to 47,983.78, 72,007.80 and 16,819.03 is: 25,239.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,983.78 : 72,007.80 = 16,819.03 : x
  2. Step 2: Convert to fraction form
    47,983.78/72,007.80 = 16,819.03/x
  3. Step 3: Cross multiply
    47,983.78x = 72,007.80 × 16,819.03
  4. Step 4: Simplify right side
    47,983.78x = 1,211,101,348.43
  5. Step 5: Solve for x
    x = 1,211,101,348.43/47,983.78
  6. Step 6: Final answer
    x = 25,239.81

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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.