Home / 31,563.11-43,579.11-19,631.81

Finding the Fourth Proportional to 31,563.11, 43,579.11 and 19,631.81

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Solution

The fourth proportional to 31,563.11, 43,579.11 and 19,631.81 is: 27,105.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,563.11 : 43,579.11 = 19,631.81 : x
  2. Step 2: Convert to fraction form
    31,563.11/43,579.11 = 19,631.81/x
  3. Step 3: Cross multiply
    31,563.11x = 43,579.11 × 19,631.81
  4. Step 4: Simplify right side
    31,563.11x = 855,536,491.43
  5. Step 5: Solve for x
    x = 855,536,491.43/31,563.11
  6. Step 6: Final answer
    x = 27,105.59

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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.