Home / 31,178.21-46,785.76-11,470.60

Finding the Fourth Proportional to 31,178.21, 46,785.76 and 11,470.60

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Solution

The fourth proportional to 31,178.21, 46,785.76 and 11,470.60 is: 17,212.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,178.21 : 46,785.76 = 11,470.60 : x
  2. Step 2: Convert to fraction form
    31,178.21/46,785.76 = 11,470.60/x
  3. Step 3: Cross multiply
    31,178.21x = 46,785.76 × 11,470.60
  4. Step 4: Simplify right side
    31,178.21x = 536,660,593.02
  5. Step 5: Solve for x
    x = 536,660,593.02/31,178.21
  6. Step 6: Final answer
    x = 17,212.68

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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.