Home / 40,021.12-55,229.79-22,116.10

Finding the Fourth Proportional to 40,021.12, 55,229.79 and 22,116.10

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Solution

The fourth proportional to 40,021.12, 55,229.79 and 22,116.10 is: 30,520.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,021.12 : 55,229.79 = 22,116.10 : x
  2. Step 2: Convert to fraction form
    40,021.12/55,229.79 = 22,116.10/x
  3. Step 3: Cross multiply
    40,021.12x = 55,229.79 × 22,116.10
  4. Step 4: Simplify right side
    40,021.12x = 1,221,467,558.62
  5. Step 5: Solve for x
    x = 1,221,467,558.62/40,021.12
  6. Step 6: Final answer
    x = 30,520.57

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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.