Home / 40,305.58-55,621-22,400.12

Finding the Fourth Proportional to 40,305.58, 55,621 and 22,400.12

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Solution

The fourth proportional to 40,305.58, 55,621 and 22,400.12 is: 30,911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,305.58 : 55,621 = 22,400.12 : x
  2. Step 2: Convert to fraction form
    40,305.58/55,621 = 22,400.12/x
  3. Step 3: Cross multiply
    40,305.58x = 55,621 × 22,400.12
  4. Step 4: Simplify right side
    40,305.58x = 1,245,917,074.52
  5. Step 5: Solve for x
    x = 1,245,917,074.52/40,305.58
  6. Step 6: Final answer
    x = 30,911.78

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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.