Home / 31,769.78-47,623.68-15,125.33

Finding the Fourth Proportional to 31,769.78, 47,623.68 and 15,125.33

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Solution

The fourth proportional to 31,769.78, 47,623.68 and 15,125.33 is: 22,673.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,769.78 : 47,623.68 = 15,125.33 : x
  2. Step 2: Convert to fraction form
    31,769.78/47,623.68 = 15,125.33/x
  3. Step 3: Cross multiply
    31,769.78x = 47,623.68 × 15,125.33
  4. Step 4: Simplify right side
    31,769.78x = 720,323,994.87
  5. Step 5: Solve for x
    x = 720,323,994.87/31,769.78
  6. Step 6: Final answer
    x = 22,673.25

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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.