Home / 19,982.81-27,576.28-11,030.31

Finding the Fourth Proportional to 19,982.81, 27,576.28 and 11,030.31

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Solution

The fourth proportional to 19,982.81, 27,576.28 and 11,030.31 is: 15,221.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.81 : 27,576.28 = 11,030.31 : x
  2. Step 2: Convert to fraction form
    19,982.81/27,576.28 = 11,030.31/x
  3. Step 3: Cross multiply
    19,982.81x = 27,576.28 × 11,030.31
  4. Step 4: Simplify right side
    19,982.81x = 304,174,861.90
  5. Step 5: Solve for x
    x = 304,174,861.90/19,982.81
  6. Step 6: Final answer
    x = 15,221.83

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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.