Home / 22,057.43-30,439.31-11,985.89

Finding the Fourth Proportional to 22,057.43, 30,439.31 and 11,985.89

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Solution

The fourth proportional to 22,057.43, 30,439.31 and 11,985.89 is: 16,540.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,057.43 : 30,439.31 = 11,985.89 : x
  2. Step 2: Convert to fraction form
    22,057.43/30,439.31 = 11,985.89/x
  3. Step 3: Cross multiply
    22,057.43x = 30,439.31 × 11,985.89
  4. Step 4: Simplify right side
    22,057.43x = 364,842,009.21
  5. Step 5: Solve for x
    x = 364,842,009.21/22,057.43
  6. Step 6: Final answer
    x = 16,540.55

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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.