Home / 31,147.58-46,721.37-7,774.02

Finding the Fourth Proportional to 31,147.58, 46,721.37 and 7,774.02

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Solution

The fourth proportional to 31,147.58, 46,721.37 and 7,774.02 is: 11,661.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,147.58 : 46,721.37 = 7,774.02 : x
  2. Step 2: Convert to fraction form
    31,147.58/46,721.37 = 7,774.02/x
  3. Step 3: Cross multiply
    31,147.58x = 46,721.37 × 7,774.02
  4. Step 4: Simplify right side
    31,147.58x = 363,212,864.81
  5. Step 5: Solve for x
    x = 363,212,864.81/31,147.58
  6. Step 6: Final answer
    x = 11,661.03

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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.