Home / 31,505.16-47,262.06-13,974.60

Finding the Fourth Proportional to 31,505.16, 47,262.06 and 13,974.60

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Solution

The fourth proportional to 31,505.16, 47,262.06 and 13,974.60 is: 20,963.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505.16 : 47,262.06 = 13,974.60 : x
  2. Step 2: Convert to fraction form
    31,505.16/47,262.06 = 13,974.60/x
  3. Step 3: Cross multiply
    31,505.16x = 47,262.06 × 13,974.60
  4. Step 4: Simplify right side
    31,505.16x = 660,468,383.68
  5. Step 5: Solve for x
    x = 660,468,383.68/31,505.16
  6. Step 6: Final answer
    x = 20,963.82

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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.