Home / 19,620.39-27,076.31-10,667.90

Finding the Fourth Proportional to 19,620.39, 27,076.31 and 10,667.90

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Solution

The fourth proportional to 19,620.39, 27,076.31 and 10,667.90 is: 14,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.39 : 27,076.31 = 10,667.90 : x
  2. Step 2: Convert to fraction form
    19,620.39/27,076.31 = 10,667.90/x
  3. Step 3: Cross multiply
    19,620.39x = 27,076.31 × 10,667.90
  4. Step 4: Simplify right side
    19,620.39x = 288,847,367.45
  5. Step 5: Solve for x
    x = 288,847,367.45/19,620.39
  6. Step 6: Final answer
    x = 14,721.80

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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.