Home / 22,005.04-30,358.83-15,198.61

Finding the Fourth Proportional to 22,005.04, 30,358.83 and 15,198.61

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Solution

The fourth proportional to 22,005.04, 30,358.83 and 15,198.61 is: 20,968.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,005.04 : 30,358.83 = 15,198.61 : x
  2. Step 2: Convert to fraction form
    22,005.04/30,358.83 = 15,198.61/x
  3. Step 3: Cross multiply
    22,005.04x = 30,358.83 × 15,198.61
  4. Step 4: Simplify right side
    22,005.04x = 461,412,017.23
  5. Step 5: Solve for x
    x = 461,412,017.23/22,005.04
  6. Step 6: Final answer
    x = 20,968.47

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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.