Home / 38,076.31-57,138.09-18,356.86

Finding the Fourth Proportional to 38,076.31, 57,138.09 and 18,356.86

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Solution

The fourth proportional to 38,076.31, 57,138.09 and 18,356.86 is: 27,546.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,076.31 : 57,138.09 = 18,356.86 : x
  2. Step 2: Convert to fraction form
    38,076.31/57,138.09 = 18,356.86/x
  3. Step 3: Cross multiply
    38,076.31x = 57,138.09 × 18,356.86
  4. Step 4: Simplify right side
    38,076.31x = 1,048,875,541.32
  5. Step 5: Solve for x
    x = 1,048,875,541.32/38,076.31
  6. Step 6: Final answer
    x = 27,546.67

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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.