Home / 21,358.22-32,025.32-8,869.84

Finding the Fourth Proportional to 21,358.22, 32,025.32 and 8,869.84

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Solution

The fourth proportional to 21,358.22, 32,025.32 and 8,869.84 is: 13,299.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,358.22 : 32,025.32 = 8,869.84 : x
  2. Step 2: Convert to fraction form
    21,358.22/32,025.32 = 8,869.84/x
  3. Step 3: Cross multiply
    21,358.22x = 32,025.32 × 8,869.84
  4. Step 4: Simplify right side
    21,358.22x = 284,059,464.35
  5. Step 5: Solve for x
    x = 284,059,464.35/21,358.22
  6. Step 6: Final answer
    x = 13,299.77

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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.