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Finding the Fourth Proportional to 27,888.96, 41,834.88 and 7,112.64

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Solution

The fourth proportional to 27,888.96, 41,834.88 and 7,112.64 is: 10,669.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,888.96 : 41,834.88 = 7,112.64 : x
  2. Step 2: Convert to fraction form
    27,888.96/41,834.88 = 7,112.64/x
  3. Step 3: Cross multiply
    27,888.96x = 41,834.88 × 7,112.64
  4. Step 4: Simplify right side
    27,888.96x = 297,556,440.88
  5. Step 5: Solve for x
    x = 297,556,440.88/27,888.96
  6. Step 6: Final answer
    x = 10,669.33

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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.