Home / 21,864.20-32,747.70-16,917.80

Finding the Fourth Proportional to 21,864.20, 32,747.70 and 16,917.80

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Solution

The fourth proportional to 21,864.20, 32,747.70 and 16,917.80 is: 25,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,864.20 : 32,747.70 = 16,917.80 : x
  2. Step 2: Convert to fraction form
    21,864.20/32,747.70 = 16,917.80/x
  3. Step 3: Cross multiply
    21,864.20x = 32,747.70 × 16,917.80
  4. Step 4: Simplify right side
    21,864.20x = 554,019,039.06
  5. Step 5: Solve for x
    x = 554,019,039.06/21,864.20
  6. Step 6: Final answer
    x = 25,339.09

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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.