Home / 40,389.72-55,738.36-22,242.60

Finding the Fourth Proportional to 40,389.72, 55,738.36 and 22,242.60

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Solution

The fourth proportional to 40,389.72, 55,738.36 and 22,242.60 is: 30,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,389.72 : 55,738.36 = 22,242.60 : x
  2. Step 2: Convert to fraction form
    40,389.72/55,738.36 = 22,242.60/x
  3. Step 3: Cross multiply
    40,389.72x = 55,738.36 × 22,242.60
  4. Step 4: Simplify right side
    40,389.72x = 1,239,766,046.14
  5. Step 5: Solve for x
    x = 1,239,766,046.14/40,389.72
  6. Step 6: Final answer
    x = 30,695.09

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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.