Home / 40,963.15-61,481.34-20,986.25

Finding the Fourth Proportional to 40,963.15, 61,481.34 and 20,986.25

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Solution

The fourth proportional to 40,963.15, 61,481.34 and 20,986.25 is: 31,498.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,963.15 : 61,481.34 = 20,986.25 : x
  2. Step 2: Convert to fraction form
    40,963.15/61,481.34 = 20,986.25/x
  3. Step 3: Cross multiply
    40,963.15x = 61,481.34 × 20,986.25
  4. Step 4: Simplify right side
    40,963.15x = 1,290,262,771.58
  5. Step 5: Solve for x
    x = 1,290,262,771.58/40,963.15
  6. Step 6: Final answer
    x = 31,498.13

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1.5x scale

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.