Home / 20,329.38-30,496.50-7,179.06

Finding the Fourth Proportional to 20,329.38, 30,496.50 and 7,179.06

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Solution

The fourth proportional to 20,329.38, 30,496.50 and 7,179.06 is: 10,769.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.38 : 30,496.50 = 7,179.06 : x
  2. Step 2: Convert to fraction form
    20,329.38/30,496.50 = 7,179.06/x
  3. Step 3: Cross multiply
    20,329.38x = 30,496.50 × 7,179.06
  4. Step 4: Simplify right side
    20,329.38x = 218,936,203.29
  5. Step 5: Solve for x
    x = 218,936,203.29/20,329.38
  6. Step 6: Final answer
    x = 10,769.45

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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.