Home / 38,664.14-57,986.73-28,256.76

Finding the Fourth Proportional to 38,664.14, 57,986.73 and 28,256.76

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Solution

The fourth proportional to 38,664.14, 57,986.73 and 28,256.76 is: 42,378.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,664.14 : 57,986.73 = 28,256.76 : x
  2. Step 2: Convert to fraction form
    38,664.14/57,986.73 = 28,256.76/x
  3. Step 3: Cross multiply
    38,664.14x = 57,986.73 × 28,256.76
  4. Step 4: Simplify right side
    38,664.14x = 1,638,517,112.79
  5. Step 5: Solve for x
    x = 1,638,517,112.79/38,664.14
  6. Step 6: Final answer
    x = 42,378.22

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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.