Home / 40,122.38-55,368.89-22,218.54

Finding the Fourth Proportional to 40,122.38, 55,368.89 and 22,218.54

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Solution

The fourth proportional to 40,122.38, 55,368.89 and 22,218.54 is: 30,661.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,122.38 : 55,368.89 = 22,218.54 : x
  2. Step 2: Convert to fraction form
    40,122.38/55,368.89 = 22,218.54/x
  3. Step 3: Cross multiply
    40,122.38x = 55,368.89 × 22,218.54
  4. Step 4: Simplify right side
    40,122.38x = 1,230,215,786.13
  5. Step 5: Solve for x
    x = 1,230,215,786.13/40,122.38
  6. Step 6: Final answer
    x = 30,661.59

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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.