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Finding the Fourth Proportional to 39,459, 54,455.04 and 22,692

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Solution

The fourth proportional to 39,459, 54,455.04 and 22,692 is: 31,315.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,459 : 54,455.04 = 22,692 : x
  2. Step 2: Convert to fraction form
    39,459/54,455.04 = 22,692/x
  3. Step 3: Cross multiply
    39,459x = 54,455.04 × 22,692
  4. Step 4: Simplify right side
    39,459x = 1,235,693,767.68
  5. Step 5: Solve for x
    x = 1,235,693,767.68/39,459
  6. Step 6: Final answer
    x = 31,315.89

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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.