Home / 31,122.44-46,671.48-13,580.36

Finding the Fourth Proportional to 31,122.44, 46,671.48 and 13,580.36

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Solution

The fourth proportional to 31,122.44, 46,671.48 and 13,580.36 is: 20,365.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,122.44 : 46,671.48 = 13,580.36 : x
  2. Step 2: Convert to fraction form
    31,122.44/46,671.48 = 13,580.36/x
  3. Step 3: Cross multiply
    31,122.44x = 46,671.48 × 13,580.36
  4. Step 4: Simplify right side
    31,122.44x = 633,815,500.13
  5. Step 5: Solve for x
    x = 633,815,500.13/31,122.44
  6. Step 6: Final answer
    x = 20,365.23

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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.