Home / 25,628.78-38,439.52-11,604.64

Finding the Fourth Proportional to 25,628.78, 38,439.52 and 11,604.64

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Solution

The fourth proportional to 25,628.78, 38,439.52 and 11,604.64 is: 17,405.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,628.78 : 38,439.52 = 11,604.64 : x
  2. Step 2: Convert to fraction form
    25,628.78/38,439.52 = 11,604.64/x
  3. Step 3: Cross multiply
    25,628.78x = 38,439.52 × 11,604.64
  4. Step 4: Simplify right side
    25,628.78x = 446,076,791.37
  5. Step 5: Solve for x
    x = 446,076,791.37/25,628.78
  6. Step 6: Final answer
    x = 17,405.31

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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.