Home / 19,800.10-27,309.92-12,719.69

Finding the Fourth Proportional to 19,800.10, 27,309.92 and 12,719.69

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Solution

The fourth proportional to 19,800.10, 27,309.92 and 12,719.69 is: 17,544.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,800.10 : 27,309.92 = 12,719.69 : x
  2. Step 2: Convert to fraction form
    19,800.10/27,309.92 = 12,719.69/x
  3. Step 3: Cross multiply
    19,800.10x = 27,309.92 × 12,719.69
  4. Step 4: Simplify right side
    19,800.10x = 347,373,716.32
  5. Step 5: Solve for x
    x = 347,373,716.32/19,800.10
  6. Step 6: Final answer
    x = 17,544.04

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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.