Home / 20,351.62-30,487.82-15,005.06

Finding the Fourth Proportional to 20,351.62, 30,487.82 and 15,005.06

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Solution

The fourth proportional to 20,351.62, 30,487.82 and 15,005.06 is: 22,478.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,351.62 : 30,487.82 = 15,005.06 : x
  2. Step 2: Convert to fraction form
    20,351.62/30,487.82 = 15,005.06/x
  3. Step 3: Cross multiply
    20,351.62x = 30,487.82 × 15,005.06
  4. Step 4: Simplify right side
    20,351.62x = 457,471,568.37
  5. Step 5: Solve for x
    x = 457,471,568.37/20,351.62
  6. Step 6: Final answer
    x = 22,478.39

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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.