Home / 21,866.20-32,750.70-16,919.80

Finding the Fourth Proportional to 21,866.20, 32,750.70 and 16,919.80

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Solution

The fourth proportional to 21,866.20, 32,750.70 and 16,919.80 is: 25,342.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,866.20 : 32,750.70 = 16,919.80 : x
  2. Step 2: Convert to fraction form
    21,866.20/32,750.70 = 16,919.80/x
  3. Step 3: Cross multiply
    21,866.20x = 32,750.70 × 16,919.80
  4. Step 4: Simplify right side
    21,866.20x = 554,135,293.86
  5. Step 5: Solve for x
    x = 554,135,293.86/21,866.20
  6. Step 6: Final answer
    x = 25,342.09

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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.