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Finding the Fourth Proportional to 17,571, 26,320.86 and 14,639.88

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Solution

The fourth proportional to 17,571, 26,320.86 and 14,639.88 is: 21,930.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,571 : 26,320.86 = 14,639.88 : x
  2. Step 2: Convert to fraction form
    17,571/26,320.86 = 14,639.88/x
  3. Step 3: Cross multiply
    17,571x = 26,320.86 × 14,639.88
  4. Step 4: Simplify right side
    17,571x = 385,334,231.90
  5. Step 5: Solve for x
    x = 385,334,231.90/17,571
  6. Step 6: Final answer
    x = 21,930.13

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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.