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Finding the Fourth Proportional to 39,469.58, 54,466.02 and 21,561.09

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Solution

The fourth proportional to 39,469.58, 54,466.02 and 21,561.09 is: 29,753.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,469.58 : 54,466.02 = 21,561.09 : x
  2. Step 2: Convert to fraction form
    39,469.58/54,466.02 = 21,561.09/x
  3. Step 3: Cross multiply
    39,469.58x = 54,466.02 × 21,561.09
  4. Step 4: Simplify right side
    39,469.58x = 1,174,346,554.91
  5. Step 5: Solve for x
    x = 1,174,346,554.91/39,469.58
  6. Step 6: Final answer
    x = 29,753.21

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1.5x scale

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.