Home / 31,189.21-46,786.76-8,701.38

Finding the Fourth Proportional to 31,189.21, 46,786.76 and 8,701.38

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Solution

The fourth proportional to 31,189.21, 46,786.76 and 8,701.38 is: 13,052.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,189.21 : 46,786.76 = 8,701.38 : x
  2. Step 2: Convert to fraction form
    31,189.21/46,786.76 = 8,701.38/x
  3. Step 3: Cross multiply
    31,189.21x = 46,786.76 × 8,701.38
  4. Step 4: Simplify right side
    31,189.21x = 407,109,399.48
  5. Step 5: Solve for x
    x = 407,109,399.48/31,189.21
  6. Step 6: Final answer
    x = 13,052.89

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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.