Home / 38,403.96-57,600.46-12,105.28

Finding the Fourth Proportional to 38,403.96, 57,600.46 and 12,105.28

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Solution

The fourth proportional to 38,403.96, 57,600.46 and 12,105.28 is: 18,156.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,403.96 : 57,600.46 = 12,105.28 : x
  2. Step 2: Convert to fraction form
    38,403.96/57,600.46 = 12,105.28/x
  3. Step 3: Cross multiply
    38,403.96x = 57,600.46 × 12,105.28
  4. Step 4: Simplify right side
    38,403.96x = 697,269,696.43
  5. Step 5: Solve for x
    x = 697,269,696.43/38,403.96
  6. Step 6: Final answer
    x = 18,156.19

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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.