Home / 40,120.67-55,366.79-22,216.83

Finding the Fourth Proportional to 40,120.67, 55,366.79 and 22,216.83

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Solution

The fourth proportional to 40,120.67, 55,366.79 and 22,216.83 is: 30,659.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.67 : 55,366.79 = 22,216.83 : x
  2. Step 2: Convert to fraction form
    40,120.67/55,366.79 = 22,216.83/x
  3. Step 3: Cross multiply
    40,120.67x = 55,366.79 × 22,216.83
  4. Step 4: Simplify right side
    40,120.67x = 1,230,074,449.99
  5. Step 5: Solve for x
    x = 1,230,074,449.99/40,120.67
  6. Step 6: Final answer
    x = 30,659.37

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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.