Home / 31,669.20-43,699.77-18,241.02

Finding the Fourth Proportional to 31,669.20, 43,699.77 and 18,241.02

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Solution

The fourth proportional to 31,669.20, 43,699.77 and 18,241.02 is: 25,170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,669.20 : 43,699.77 = 18,241.02 : x
  2. Step 2: Convert to fraction form
    31,669.20/43,699.77 = 18,241.02/x
  3. Step 3: Cross multiply
    31,669.20x = 43,699.77 × 18,241.02
  4. Step 4: Simplify right side
    31,669.20x = 797,128,378.57
  5. Step 5: Solve for x
    x = 797,128,378.57/31,669.20
  6. Step 6: Final answer
    x = 25,170.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.