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Finding the Fourth Proportional to 52,854, 79,281 and 15,918

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Solution

The fourth proportional to 52,854, 79,281 and 15,918 is: 23,877

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,854 : 79,281 = 15,918 : x
  2. Step 2: Convert to fraction form
    52,854/79,281 = 15,918/x
  3. Step 3: Cross multiply
    52,854x = 79,281 × 15,918
  4. Step 4: Simplify right side
    52,854x = 1,261,994,958
  5. Step 5: Solve for x
    x = 1,261,994,958/52,854
  6. Step 6: Final answer
    x = 23,877

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.