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Finding the Fourth Proportional to 34,895, 48,134.58 and 20,747

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Solution

The fourth proportional to 34,895, 48,134.58 and 20,747 is: 28,618.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,895 : 48,134.58 = 20,747 : x
  2. Step 2: Convert to fraction form
    34,895/48,134.58 = 20,747/x
  3. Step 3: Cross multiply
    34,895x = 48,134.58 × 20,747
  4. Step 4: Simplify right side
    34,895x = 998,648,131.26
  5. Step 5: Solve for x
    x = 998,648,131.26/34,895
  6. Step 6: Final answer
    x = 28,618.66

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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.