Home / 21,708.80-32,579.60-15,880.44

Finding the Fourth Proportional to 21,708.80, 32,579.60 and 15,880.44

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Solution

The fourth proportional to 21,708.80, 32,579.60 and 15,880.44 is: 23,832.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708.80 : 32,579.60 = 15,880.44 : x
  2. Step 2: Convert to fraction form
    21,708.80/32,579.60 = 15,880.44/x
  3. Step 3: Cross multiply
    21,708.80x = 32,579.60 × 15,880.44
  4. Step 4: Simplify right side
    21,708.80x = 517,378,383.02
  5. Step 5: Solve for x
    x = 517,378,383.02/21,708.80
  6. Step 6: Final answer
    x = 23,832.66

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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.