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Finding the Fourth Proportional to 34,771, 48,010.28 and 21,360.64

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Solution

The fourth proportional to 34,771, 48,010.28 and 21,360.64 is: 29,493.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,771 : 48,010.28 = 21,360.64 : x
  2. Step 2: Convert to fraction form
    34,771/48,010.28 = 21,360.64/x
  3. Step 3: Cross multiply
    34,771x = 48,010.28 × 21,360.64
  4. Step 4: Simplify right side
    34,771x = 1,025,530,307.38
  5. Step 5: Solve for x
    x = 1,025,530,307.38/34,771
  6. Step 6: Final answer
    x = 29,493.84

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1.5x scale

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.