Home / 31,132.22-46,693.31-8,940.55

Finding the Fourth Proportional to 31,132.22, 46,693.31 and 8,940.55

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Solution

The fourth proportional to 31,132.22, 46,693.31 and 8,940.55 is: 13,409.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,132.22 : 46,693.31 = 8,940.55 : x
  2. Step 2: Convert to fraction form
    31,132.22/46,693.31 = 8,940.55/x
  3. Step 3: Cross multiply
    31,132.22x = 46,693.31 × 8,940.55
  4. Step 4: Simplify right side
    31,132.22x = 417,463,828.02
  5. Step 5: Solve for x
    x = 417,463,828.02/31,132.22
  6. Step 6: Final answer
    x = 13,409.38

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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.