Home / 40,122.09-55,367.80-22,216.71

Finding the Fourth Proportional to 40,122.09, 55,367.80 and 22,216.71

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Solution

The fourth proportional to 40,122.09, 55,367.80 and 22,216.71 is: 30,658.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,122.09 : 55,367.80 = 22,216.71 : x
  2. Step 2: Convert to fraction form
    40,122.09/55,367.80 = 22,216.71/x
  3. Step 3: Cross multiply
    40,122.09x = 55,367.80 × 22,216.71
  4. Step 4: Simplify right side
    40,122.09x = 1,230,090,355.94
  5. Step 5: Solve for x
    x = 1,230,090,355.94/40,122.09
  6. Step 6: Final answer
    x = 30,658.68

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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.