Home / 38,443.24-57,644.40-19,715.72

Finding the Fourth Proportional to 38,443.24, 57,644.40 and 19,715.72

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Solution

The fourth proportional to 38,443.24, 57,644.40 and 19,715.72 is: 29,563.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,443.24 : 57,644.40 = 19,715.72 : x
  2. Step 2: Convert to fraction form
    38,443.24/57,644.40 = 19,715.72/x
  3. Step 3: Cross multiply
    38,443.24x = 57,644.40 × 19,715.72
  4. Step 4: Simplify right side
    38,443.24x = 1,136,500,849.97
  5. Step 5: Solve for x
    x = 1,136,500,849.97/38,443.24
  6. Step 6: Final answer
    x = 29,563.09

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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.