Home / 19,862.72-29,785.92-7,383.60

Finding the Fourth Proportional to 19,862.72, 29,785.92 and 7,383.60

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Solution

The fourth proportional to 19,862.72, 29,785.92 and 7,383.60 is: 11,072.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.72 : 29,785.92 = 7,383.60 : x
  2. Step 2: Convert to fraction form
    19,862.72/29,785.92 = 7,383.60/x
  3. Step 3: Cross multiply
    19,862.72x = 29,785.92 × 7,383.60
  4. Step 4: Simplify right side
    19,862.72x = 219,927,318.91
  5. Step 5: Solve for x
    x = 219,927,318.91/19,862.72
  6. Step 6: Final answer
    x = 11,072.37

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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.