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Finding the Fourth Proportional to 17,270.20, 25,905.30 and 8,947.45

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Solution

The fourth proportional to 17,270.20, 25,905.30 and 8,947.45 is: 13,421.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,270.20 : 25,905.30 = 8,947.45 : x
  2. Step 2: Convert to fraction form
    17,270.20/25,905.30 = 8,947.45/x
  3. Step 3: Cross multiply
    17,270.20x = 25,905.30 × 8,947.45
  4. Step 4: Simplify right side
    17,270.20x = 231,786,376.49
  5. Step 5: Solve for x
    x = 231,786,376.49/17,270.20
  6. Step 6: Final answer
    x = 13,421.18

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1.5x scale

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.