Home / 21,400.54-32,098.38-8,251.81

Finding the Fourth Proportional to 21,400.54, 32,098.38 and 8,251.81

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Solution

The fourth proportional to 21,400.54, 32,098.38 and 8,251.81 is: 12,376.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,400.54 : 32,098.38 = 8,251.81 : x
  2. Step 2: Convert to fraction form
    21,400.54/32,098.38 = 8,251.81/x
  3. Step 3: Cross multiply
    21,400.54x = 32,098.38 × 8,251.81
  4. Step 4: Simplify right side
    21,400.54x = 264,869,621.88
  5. Step 5: Solve for x
    x = 264,869,621.88/21,400.54
  6. Step 6: Final answer
    x = 12,376.77

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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.