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Finding the Fourth Proportional to 21,671.73, 32,445.97 and 14,253.89

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Solution

The fourth proportional to 21,671.73, 32,445.97 and 14,253.89 is: 21,340.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,671.73 : 32,445.97 = 14,253.89 : x
  2. Step 2: Convert to fraction form
    21,671.73/32,445.97 = 14,253.89/x
  3. Step 3: Cross multiply
    21,671.73x = 32,445.97 × 14,253.89
  4. Step 4: Simplify right side
    21,671.73x = 462,481,089.46
  5. Step 5: Solve for x
    x = 462,481,089.46/21,671.73
  6. Step 6: Final answer
    x = 21,340.29

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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.