Home / 20,252.47-27,947.37-11,179.42

Finding the Fourth Proportional to 20,252.47, 27,947.37 and 11,179.42

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Solution

The fourth proportional to 20,252.47, 27,947.37 and 11,179.42 is: 15,427.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.47 : 27,947.37 = 11,179.42 : x
  2. Step 2: Convert to fraction form
    20,252.47/27,947.37 = 11,179.42/x
  3. Step 3: Cross multiply
    20,252.47x = 27,947.37 × 11,179.42
  4. Step 4: Simplify right side
    20,252.47x = 312,435,463.98
  5. Step 5: Solve for x
    x = 312,435,463.98/20,252.47
  6. Step 6: Final answer
    x = 15,427.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.