Home / 21,499.21-32,261.10-8,349.87

Finding the Fourth Proportional to 21,499.21, 32,261.10 and 8,349.87

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Solution

The fourth proportional to 21,499.21, 32,261.10 and 8,349.87 is: 12,529.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,499.21 : 32,261.10 = 8,349.87 : x
  2. Step 2: Convert to fraction form
    21,499.21/32,261.10 = 8,349.87/x
  3. Step 3: Cross multiply
    21,499.21x = 32,261.10 × 8,349.87
  4. Step 4: Simplify right side
    21,499.21x = 269,375,991.06
  5. Step 5: Solve for x
    x = 269,375,991.06/21,499.21
  6. Step 6: Final answer
    x = 12,529.58

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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.