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Finding the Fourth Proportional to 34,383, 47,449.26 and 19,479

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Solution

The fourth proportional to 34,383, 47,449.26 and 19,479 is: 26,881.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,383 : 47,449.26 = 19,479 : x
  2. Step 2: Convert to fraction form
    34,383/47,449.26 = 19,479/x
  3. Step 3: Cross multiply
    34,383x = 47,449.26 × 19,479
  4. Step 4: Simplify right side
    34,383x = 924,264,135.54
  5. Step 5: Solve for x
    x = 924,264,135.54/34,383
  6. Step 6: Final answer
    x = 26,881.43

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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.