Home / 17,019.60-25,531.80-5,331.60

Finding the Fourth Proportional to 17,019.60, 25,531.80 and 5,331.60

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Solution

The fourth proportional to 17,019.60, 25,531.80 and 5,331.60 is: 7,998.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,019.60 : 25,531.80 = 5,331.60 : x
  2. Step 2: Convert to fraction form
    17,019.60/25,531.80 = 5,331.60/x
  3. Step 3: Cross multiply
    17,019.60x = 25,531.80 × 5,331.60
  4. Step 4: Simplify right side
    17,019.60x = 136,125,344.88
  5. Step 5: Solve for x
    x = 136,125,344.88/17,019.60
  6. Step 6: Final answer
    x = 7,998.15

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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.