Home / 22,270.54-33,380.64-9,115.72

Finding the Fourth Proportional to 22,270.54, 33,380.64 and 9,115.72

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Solution

The fourth proportional to 22,270.54, 33,380.64 and 9,115.72 is: 13,663.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,270.54 : 33,380.64 = 9,115.72 : x
  2. Step 2: Convert to fraction form
    22,270.54/33,380.64 = 9,115.72/x
  3. Step 3: Cross multiply
    22,270.54x = 33,380.64 × 9,115.72
  4. Step 4: Simplify right side
    22,270.54x = 304,288,567.66
  5. Step 5: Solve for x
    x = 304,288,567.66/22,270.54
  6. Step 6: Final answer
    x = 13,663.28

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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.