Home / 40,228.02-55,512-22,321.89

Finding the Fourth Proportional to 40,228.02, 55,512 and 22,321.89

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Solution

The fourth proportional to 40,228.02, 55,512 and 22,321.89 is: 30,802.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,228.02 : 55,512 = 22,321.89 : x
  2. Step 2: Convert to fraction form
    40,228.02/55,512 = 22,321.89/x
  3. Step 3: Cross multiply
    40,228.02x = 55,512 × 22,321.89
  4. Step 4: Simplify right side
    40,228.02x = 1,239,132,757.68
  5. Step 5: Solve for x
    x = 1,239,132,757.68/40,228.02
  6. Step 6: Final answer
    x = 30,802.73

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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.