Home / 19,470.54-26,871.46-11,921.96

Finding the Fourth Proportional to 19,470.54, 26,871.46 and 11,921.96

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Solution

The fourth proportional to 19,470.54, 26,871.46 and 11,921.96 is: 16,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,470.54 : 26,871.46 = 11,921.96 : x
  2. Step 2: Convert to fraction form
    19,470.54/26,871.46 = 11,921.96/x
  3. Step 3: Cross multiply
    19,470.54x = 26,871.46 × 11,921.96
  4. Step 4: Simplify right side
    19,470.54x = 320,360,471.26
  5. Step 5: Solve for x
    x = 320,360,471.26/19,470.54
  6. Step 6: Final answer
    x = 16,453.60

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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.