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Finding the Fourth Proportional to 39,237, 54,147.06 and 21,573

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Solution

The fourth proportional to 39,237, 54,147.06 and 21,573 is: 29,770.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,237 : 54,147.06 = 21,573 : x
  2. Step 2: Convert to fraction form
    39,237/54,147.06 = 21,573/x
  3. Step 3: Cross multiply
    39,237x = 54,147.06 × 21,573
  4. Step 4: Simplify right side
    39,237x = 1,168,114,525.38
  5. Step 5: Solve for x
    x = 1,168,114,525.38/39,237
  6. Step 6: Final answer
    x = 29,770.74

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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.