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Finding the Fourth Proportional to 17,064.40, 25,553.40 and 13,608.40

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Solution

The fourth proportional to 17,064.40, 25,553.40 and 13,608.40 is: 20,378.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,064.40 : 25,553.40 = 13,608.40 : x
  2. Step 2: Convert to fraction form
    17,064.40/25,553.40 = 13,608.40/x
  3. Step 3: Cross multiply
    17,064.40x = 25,553.40 × 13,608.40
  4. Step 4: Simplify right side
    17,064.40x = 347,740,888.56
  5. Step 5: Solve for x
    x = 347,740,888.56/17,064.40
  6. Step 6: Final answer
    x = 20,378.15

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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.