Home / 17,720.96-24,455.04-11,425.28

Finding the Fourth Proportional to 17,720.96, 24,455.04 and 11,425.28

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Solution

The fourth proportional to 17,720.96, 24,455.04 and 11,425.28 is: 15,766.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.96 : 24,455.04 = 11,425.28 : x
  2. Step 2: Convert to fraction form
    17,720.96/24,455.04 = 11,425.28/x
  3. Step 3: Cross multiply
    17,720.96x = 24,455.04 × 11,425.28
  4. Step 4: Simplify right side
    17,720.96x = 279,405,679.41
  5. Step 5: Solve for x
    x = 279,405,679.41/17,720.96
  6. Step 6: Final answer
    x = 15,766.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.