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Finding the Fourth Proportional to 17,571, 26,356.50 and 4,423.40

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Solution

The fourth proportional to 17,571, 26,356.50 and 4,423.40 is: 6,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,571 : 26,356.50 = 4,423.40 : x
  2. Step 2: Convert to fraction form
    17,571/26,356.50 = 4,423.40/x
  3. Step 3: Cross multiply
    17,571x = 26,356.50 × 4,423.40
  4. Step 4: Simplify right side
    17,571x = 116,585,342.10
  5. Step 5: Solve for x
    x = 116,585,342.10/17,571
  6. Step 6: Final answer
    x = 6,635.10

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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.