Home / 39,548.03-54,576.11-21,398.69

Finding the Fourth Proportional to 39,548.03, 54,576.11 and 21,398.69

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Solution

The fourth proportional to 39,548.03, 54,576.11 and 21,398.69 is: 29,530.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,548.03 : 54,576.11 = 21,398.69 : x
  2. Step 2: Convert to fraction form
    39,548.03/54,576.11 = 21,398.69/x
  3. Step 3: Cross multiply
    39,548.03x = 54,576.11 × 21,398.69
  4. Step 4: Simplify right side
    39,548.03x = 1,167,856,879.42
  5. Step 5: Solve for x
    x = 1,167,856,879.42/39,548.03
  6. Step 6: Final answer
    x = 29,530.09

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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.