Home / 21,674.04-32,484.44-12,321.90

Finding the Fourth Proportional to 21,674.04, 32,484.44 and 12,321.90

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Solution

The fourth proportional to 21,674.04, 32,484.44 and 12,321.90 is: 18,467.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,674.04 : 32,484.44 = 12,321.90 : x
  2. Step 2: Convert to fraction form
    21,674.04/32,484.44 = 12,321.90/x
  3. Step 3: Cross multiply
    21,674.04x = 32,484.44 × 12,321.90
  4. Step 4: Simplify right side
    21,674.04x = 400,270,021.24
  5. Step 5: Solve for x
    x = 400,270,021.24/21,674.04
  6. Step 6: Final answer
    x = 18,467.72

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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.