Home / 39,579.30-54,618.69-21,673.98

Finding the Fourth Proportional to 39,579.30, 54,618.69 and 21,673.98

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Solution

The fourth proportional to 39,579.30, 54,618.69 and 21,673.98 is: 29,909.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,579.30 : 54,618.69 = 21,673.98 : x
  2. Step 2: Convert to fraction form
    39,579.30/54,618.69 = 21,673.98/x
  3. Step 3: Cross multiply
    39,579.30x = 54,618.69 × 21,673.98
  4. Step 4: Simplify right side
    39,579.30x = 1,183,804,394.69
  5. Step 5: Solve for x
    x = 1,183,804,394.69/39,579.30
  6. Step 6: Final answer
    x = 29,909.68

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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.