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Finding the Fourth Proportional to 27,897.39, 41,846.09 and 7,120.89

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Solution

The fourth proportional to 27,897.39, 41,846.09 and 7,120.89 is: 10,681.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,897.39 : 41,846.09 = 7,120.89 : x
  2. Step 2: Convert to fraction form
    27,897.39/41,846.09 = 7,120.89/x
  3. Step 3: Cross multiply
    27,897.39x = 41,846.09 × 7,120.89
  4. Step 4: Simplify right side
    27,897.39x = 297,981,368.22
  5. Step 5: Solve for x
    x = 297,981,368.22/27,897.39
  6. Step 6: Final answer
    x = 10,681.34

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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.