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Finding the Fourth Proportional to 17,208.40, 25,812.60 and 17,099.20

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Solution

The fourth proportional to 17,208.40, 25,812.60 and 17,099.20 is: 25,648.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,208.40 : 25,812.60 = 17,099.20 : x
  2. Step 2: Convert to fraction form
    17,208.40/25,812.60 = 17,099.20/x
  3. Step 3: Cross multiply
    17,208.40x = 25,812.60 × 17,099.20
  4. Step 4: Simplify right side
    17,208.40x = 441,374,809.92
  5. Step 5: Solve for x
    x = 441,374,809.92/17,208.40
  6. Step 6: Final answer
    x = 25,648.80

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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.