Home / 38,258.28-57,387.78-11,961

Finding the Fourth Proportional to 38,258.28, 57,387.78 and 11,961

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Solution

The fourth proportional to 38,258.28, 57,387.78 and 11,961 is: 17,941.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,258.28 : 57,387.78 = 11,961 : x
  2. Step 2: Convert to fraction form
    38,258.28/57,387.78 = 11,961/x
  3. Step 3: Cross multiply
    38,258.28x = 57,387.78 × 11,961
  4. Step 4: Simplify right side
    38,258.28x = 686,415,236.58
  5. Step 5: Solve for x
    x = 686,415,236.58/38,258.28
  6. Step 6: Final answer
    x = 17,941.61

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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.