Home / 21,338.60-32,004.24-8,187.44

Finding the Fourth Proportional to 21,338.60, 32,004.24 and 8,187.44

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Solution

The fourth proportional to 21,338.60, 32,004.24 and 8,187.44 is: 12,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,338.60 : 32,004.24 = 8,187.44 : x
  2. Step 2: Convert to fraction form
    21,338.60/32,004.24 = 8,187.44/x
  3. Step 3: Cross multiply
    21,338.60x = 32,004.24 × 8,187.44
  4. Step 4: Simplify right side
    21,338.60x = 262,032,794.75
  5. Step 5: Solve for x
    x = 262,032,794.75/21,338.60
  6. Step 6: Final answer
    x = 12,279.76

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1.5x scale

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.