Home / 31,047.09-46,562.40-13,512.75

Finding the Fourth Proportional to 31,047.09, 46,562.40 and 13,512.75

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Solution

The fourth proportional to 31,047.09, 46,562.40 and 13,512.75 is: 20,265.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,047.09 : 46,562.40 = 13,512.75 : x
  2. Step 2: Convert to fraction form
    31,047.09/46,562.40 = 13,512.75/x
  3. Step 3: Cross multiply
    31,047.09x = 46,562.40 × 13,512.75
  4. Step 4: Simplify right side
    31,047.09x = 629,186,070.60
  5. Step 5: Solve for x
    x = 629,186,070.60/31,047.09
  6. Step 6: Final answer
    x = 20,265.54

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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.