Home / 21,821.86-32,749.26-17,491.60

Finding the Fourth Proportional to 21,821.86, 32,749.26 and 17,491.60

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Solution

The fourth proportional to 21,821.86, 32,749.26 and 17,491.60 is: 26,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,821.86 : 32,749.26 = 17,491.60 : x
  2. Step 2: Convert to fraction form
    21,821.86/32,749.26 = 17,491.60/x
  3. Step 3: Cross multiply
    21,821.86x = 32,749.26 × 17,491.60
  4. Step 4: Simplify right side
    21,821.86x = 572,836,845.73
  5. Step 5: Solve for x
    x = 572,836,845.73/21,821.86
  6. Step 6: Final answer
    x = 26,250.60

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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.