Home / 19,982.55-27,558.99-12,023.29

Finding the Fourth Proportional to 19,982.55, 27,558.99 and 12,023.29

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Solution

The fourth proportional to 19,982.55, 27,558.99 and 12,023.29 is: 16,581.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.55 : 27,558.99 = 12,023.29 : x
  2. Step 2: Convert to fraction form
    19,982.55/27,558.99 = 12,023.29/x
  3. Step 3: Cross multiply
    19,982.55x = 27,558.99 × 12,023.29
  4. Step 4: Simplify right side
    19,982.55x = 331,349,728.88
  5. Step 5: Solve for x
    x = 331,349,728.88/19,982.55
  6. Step 6: Final answer
    x = 16,581.95

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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.