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Finding the Fourth Proportional to 29,304, 40,423.68 and 18,676.80

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Solution

The fourth proportional to 29,304, 40,423.68 and 18,676.80 is: 25,763.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,304 : 40,423.68 = 18,676.80 : x
  2. Step 2: Convert to fraction form
    29,304/40,423.68 = 18,676.80/x
  3. Step 3: Cross multiply
    29,304x = 40,423.68 × 18,676.80
  4. Step 4: Simplify right side
    29,304x = 754,984,986.62
  5. Step 5: Solve for x
    x = 754,984,986.62/29,304
  6. Step 6: Final answer
    x = 25,763.89

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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.