Home / 40,636.80-56,078.40-22,731.60

Finding the Fourth Proportional to 40,636.80, 56,078.40 and 22,731.60

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Solution

The fourth proportional to 40,636.80, 56,078.40 and 22,731.60 is: 31,369.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,636.80 : 56,078.40 = 22,731.60 : x
  2. Step 2: Convert to fraction form
    40,636.80/56,078.40 = 22,731.60/x
  3. Step 3: Cross multiply
    40,636.80x = 56,078.40 × 22,731.60
  4. Step 4: Simplify right side
    40,636.80x = 1,274,751,757.44
  5. Step 5: Solve for x
    x = 1,274,751,757.44/40,636.80
  6. Step 6: Final answer
    x = 31,369.39

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1.5x scale

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.