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Finding the Fourth Proportional to 39,567, 54,602.46 and 21,903

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Solution

The fourth proportional to 39,567, 54,602.46 and 21,903 is: 30,226.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,567 : 54,602.46 = 21,903 : x
  2. Step 2: Convert to fraction form
    39,567/54,602.46 = 21,903/x
  3. Step 3: Cross multiply
    39,567x = 54,602.46 × 21,903
  4. Step 4: Simplify right side
    39,567x = 1,195,957,681.38
  5. Step 5: Solve for x
    x = 1,195,957,681.38/39,567
  6. Step 6: Final answer
    x = 30,226.14

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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.