Home / 38,161.12-52,661.56-21,162.62

Finding the Fourth Proportional to 38,161.12, 52,661.56 and 21,162.62

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Solution

The fourth proportional to 38,161.12, 52,661.56 and 21,162.62 is: 29,203.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,161.12 : 52,661.56 = 21,162.62 : x
  2. Step 2: Convert to fraction form
    38,161.12/52,661.56 = 21,162.62/x
  3. Step 3: Cross multiply
    38,161.12x = 52,661.56 × 21,162.62
  4. Step 4: Simplify right side
    38,161.12x = 1,114,456,582.89
  5. Step 5: Solve for x
    x = 1,114,456,582.89/38,161.12
  6. Step 6: Final answer
    x = 29,203.98

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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.