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Finding the Fourth Proportional to 39,464.57, 54,461.90 and 21,560.73

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Solution

The fourth proportional to 39,464.57, 54,461.90 and 21,560.73 is: 29,754.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,464.57 : 54,461.90 = 21,560.73 : x
  2. Step 2: Convert to fraction form
    39,464.57/54,461.90 = 21,560.73/x
  3. Step 3: Cross multiply
    39,464.57x = 54,461.90 × 21,560.73
  4. Step 4: Simplify right side
    39,464.57x = 1,174,238,375.09
  5. Step 5: Solve for x
    x = 1,174,238,375.09/39,464.57
  6. Step 6: Final answer
    x = 29,754.25

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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.