Home / 28,725.88-43,074.98-10,005.50

Finding the Fourth Proportional to 28,725.88, 43,074.98 and 10,005.50

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Solution

The fourth proportional to 28,725.88, 43,074.98 and 10,005.50 is: 15,003.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.88 : 43,074.98 = 10,005.50 : x
  2. Step 2: Convert to fraction form
    28,725.88/43,074.98 = 10,005.50/x
  3. Step 3: Cross multiply
    28,725.88x = 43,074.98 × 10,005.50
  4. Step 4: Simplify right side
    28,725.88x = 430,986,712.39
  5. Step 5: Solve for x
    x = 430,986,712.39/28,725.88
  6. Step 6: Final answer
    x = 15,003.43

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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.