Home / 40,135.36-55,387.24-22,230.64

Finding the Fourth Proportional to 40,135.36, 55,387.24 and 22,230.64

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Solution

The fourth proportional to 40,135.36, 55,387.24 and 22,230.64 is: 30,678.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,135.36 : 55,387.24 = 22,230.64 : x
  2. Step 2: Convert to fraction form
    40,135.36/55,387.24 = 22,230.64/x
  3. Step 3: Cross multiply
    40,135.36x = 55,387.24 × 22,230.64
  4. Step 4: Simplify right side
    40,135.36x = 1,231,293,793.03
  5. Step 5: Solve for x
    x = 1,231,293,793.03/40,135.36
  6. Step 6: Final answer
    x = 30,678.53

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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.