Home / 21,686.20-32,529.30-11,296.60

Finding the Fourth Proportional to 21,686.20, 32,529.30 and 11,296.60

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Solution

The fourth proportional to 21,686.20, 32,529.30 and 11,296.60 is: 16,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,686.20 : 32,529.30 = 11,296.60 : x
  2. Step 2: Convert to fraction form
    21,686.20/32,529.30 = 11,296.60/x
  3. Step 3: Cross multiply
    21,686.20x = 32,529.30 × 11,296.60
  4. Step 4: Simplify right side
    21,686.20x = 367,470,490.38
  5. Step 5: Solve for x
    x = 367,470,490.38/21,686.20
  6. Step 6: Final answer
    x = 16,944.90

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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.