Home / 20,007.56-30,028.17-10,009.30

Finding the Fourth Proportional to 20,007.56, 30,028.17 and 10,009.30

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Solution

The fourth proportional to 20,007.56, 30,028.17 and 10,009.30 is: 15,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.56 : 30,028.17 = 10,009.30 : x
  2. Step 2: Convert to fraction form
    20,007.56/30,028.17 = 10,009.30/x
  3. Step 3: Cross multiply
    20,007.56x = 30,028.17 × 10,009.30
  4. Step 4: Simplify right side
    20,007.56x = 300,561,093.35
  5. Step 5: Solve for x
    x = 300,561,093.35/20,007.56
  6. Step 6: Final answer
    x = 15,022.38

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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.