Home / 31,114.48-46,662-13,579.60

Finding the Fourth Proportional to 31,114.48, 46,662 and 13,579.60

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Solution

The fourth proportional to 31,114.48, 46,662 and 13,579.60 is: 20,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,114.48 : 46,662 = 13,579.60 : x
  2. Step 2: Convert to fraction form
    31,114.48/46,662 = 13,579.60/x
  3. Step 3: Cross multiply
    31,114.48x = 46,662 × 13,579.60
  4. Step 4: Simplify right side
    31,114.48x = 633,651,295.20
  5. Step 5: Solve for x
    x = 633,651,295.20/31,114.48
  6. Step 6: Final answer
    x = 20,365.16

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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.