Home / 20,558.64-30,822.57-18,472.62

Finding the Fourth Proportional to 20,558.64, 30,822.57 and 18,472.62

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Solution

The fourth proportional to 20,558.64, 30,822.57 and 18,472.62 is: 27,695.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.64 : 30,822.57 = 18,472.62 : x
  2. Step 2: Convert to fraction form
    20,558.64/30,822.57 = 18,472.62/x
  3. Step 3: Cross multiply
    20,558.64x = 30,822.57 × 18,472.62
  4. Step 4: Simplify right side
    20,558.64x = 569,373,623.03
  5. Step 5: Solve for x
    x = 569,373,623.03/20,558.64
  6. Step 6: Final answer
    x = 27,695.10

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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.