Home / 38,553.18-57,803.82-19,809.78

Finding the Fourth Proportional to 38,553.18, 57,803.82 and 19,809.78

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Solution

The fourth proportional to 38,553.18, 57,803.82 and 19,809.78 is: 29,701.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,553.18 : 57,803.82 = 19,809.78 : x
  2. Step 2: Convert to fraction form
    38,553.18/57,803.82 = 19,809.78/x
  3. Step 3: Cross multiply
    38,553.18x = 57,803.82 × 19,809.78
  4. Step 4: Simplify right side
    38,553.18x = 1,145,080,957.36
  5. Step 5: Solve for x
    x = 1,145,080,957.36/38,553.18
  6. Step 6: Final answer
    x = 29,701.34

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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.