Home / 18,100.35-27,153.05-5,621.33

Finding the Fourth Proportional to 18,100.35, 27,153.05 and 5,621.33

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Solution

The fourth proportional to 18,100.35, 27,153.05 and 5,621.33 is: 8,432.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100.35 : 27,153.05 = 5,621.33 : x
  2. Step 2: Convert to fraction form
    18,100.35/27,153.05 = 5,621.33/x
  3. Step 3: Cross multiply
    18,100.35x = 27,153.05 × 5,621.33
  4. Step 4: Simplify right side
    18,100.35x = 152,636,090.68
  5. Step 5: Solve for x
    x = 152,636,090.68/18,100.35
  6. Step 6: Final answer
    x = 8,432.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.