Home / 38,982.47-53,795.79-21,077.48

Finding the Fourth Proportional to 38,982.47, 53,795.79 and 21,077.48

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Solution

The fourth proportional to 38,982.47, 53,795.79 and 21,077.48 is: 29,086.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,982.47 : 53,795.79 = 21,077.48 : x
  2. Step 2: Convert to fraction form
    38,982.47/53,795.79 = 21,077.48/x
  3. Step 3: Cross multiply
    38,982.47x = 53,795.79 × 21,077.48
  4. Step 4: Simplify right side
    38,982.47x = 1,133,879,418.83
  5. Step 5: Solve for x
    x = 1,133,879,418.83/38,982.47
  6. Step 6: Final answer
    x = 29,086.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.