Home / 20,416.08-30,621.96-6,564

Finding the Fourth Proportional to 20,416.08, 30,621.96 and 6,564

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Solution

The fourth proportional to 20,416.08, 30,621.96 and 6,564 is: 9,845.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.08 : 30,621.96 = 6,564 : x
  2. Step 2: Convert to fraction form
    20,416.08/30,621.96 = 6,564/x
  3. Step 3: Cross multiply
    20,416.08x = 30,621.96 × 6,564
  4. Step 4: Simplify right side
    20,416.08x = 201,002,545.44
  5. Step 5: Solve for x
    x = 201,002,545.44/20,416.08
  6. Step 6: Final answer
    x = 9,845.31

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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.