Home / 21,578.20-32,372.70-17,152.60

Finding the Fourth Proportional to 21,578.20, 32,372.70 and 17,152.60

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Solution

The fourth proportional to 21,578.20, 32,372.70 and 17,152.60 is: 25,733.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,578.20 : 32,372.70 = 17,152.60 : x
  2. Step 2: Convert to fraction form
    21,578.20/32,372.70 = 17,152.60/x
  3. Step 3: Cross multiply
    21,578.20x = 32,372.70 × 17,152.60
  4. Step 4: Simplify right side
    21,578.20x = 555,275,974.02
  5. Step 5: Solve for x
    x = 555,275,974.02/21,578.20
  6. Step 6: Final answer
    x = 25,733.19

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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.