Home / 20,617.62-28,452.32-11,664.94

Finding the Fourth Proportional to 20,617.62, 28,452.32 and 11,664.94

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Solution

The fourth proportional to 20,617.62, 28,452.32 and 11,664.94 is: 16,097.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617.62 : 28,452.32 = 11,664.94 : x
  2. Step 2: Convert to fraction form
    20,617.62/28,452.32 = 11,664.94/x
  3. Step 3: Cross multiply
    20,617.62x = 28,452.32 × 11,664.94
  4. Step 4: Simplify right side
    20,617.62x = 331,894,605.66
  5. Step 5: Solve for x
    x = 331,894,605.66/20,617.62
  6. Step 6: Final answer
    x = 16,097.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.