Home / 20,097.13-30,164.30-10,243.75

Finding the Fourth Proportional to 20,097.13, 30,164.30 and 10,243.75

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Solution

The fourth proportional to 20,097.13, 30,164.30 and 10,243.75 is: 15,375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,097.13 : 30,164.30 = 10,243.75 : x
  2. Step 2: Convert to fraction form
    20,097.13/30,164.30 = 10,243.75/x
  3. Step 3: Cross multiply
    20,097.13x = 30,164.30 × 10,243.75
  4. Step 4: Simplify right side
    20,097.13x = 308,995,548.13
  5. Step 5: Solve for x
    x = 308,995,548.13/20,097.13
  6. Step 6: Final answer
    x = 15,375.11

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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.