Home / 28,988.90-43,481.93-16,987.73

Finding the Fourth Proportional to 28,988.90, 43,481.93 and 16,987.73

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Solution

The fourth proportional to 28,988.90, 43,481.93 and 16,987.73 is: 25,480.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.90 : 43,481.93 = 16,987.73 : x
  2. Step 2: Convert to fraction form
    28,988.90/43,481.93 = 16,987.73/x
  3. Step 3: Cross multiply
    28,988.90x = 43,481.93 × 16,987.73
  4. Step 4: Simplify right side
    28,988.90x = 738,659,310.49
  5. Step 5: Solve for x
    x = 738,659,310.49/28,988.90
  6. Step 6: Final answer
    x = 25,480.77

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1.5x scale

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.