Home / 19,171.31-28,725.06-6,684.45

Finding the Fourth Proportional to 19,171.31, 28,725.06 and 6,684.45

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Solution

The fourth proportional to 19,171.31, 28,725.06 and 6,684.45 is: 10,015.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.31 : 28,725.06 = 6,684.45 : x
  2. Step 2: Convert to fraction form
    19,171.31/28,725.06 = 6,684.45/x
  3. Step 3: Cross multiply
    19,171.31x = 28,725.06 × 6,684.45
  4. Step 4: Simplify right side
    19,171.31x = 192,011,144.66
  5. Step 5: Solve for x
    x = 192,011,144.66/19,171.31
  6. Step 6: Final answer
    x = 10,015.55

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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.