Home / 20,164.28-30,249.52-10,298.20

Finding the Fourth Proportional to 20,164.28, 30,249.52 and 10,298.20

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Solution

The fourth proportional to 20,164.28, 30,249.52 and 10,298.20 is: 15,448.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.28 : 30,249.52 = 10,298.20 : x
  2. Step 2: Convert to fraction form
    20,164.28/30,249.52 = 10,298.20/x
  3. Step 3: Cross multiply
    20,164.28x = 30,249.52 × 10,298.20
  4. Step 4: Simplify right side
    20,164.28x = 311,515,606.86
  5. Step 5: Solve for x
    x = 311,515,606.86/20,164.28
  6. Step 6: Final answer
    x = 15,448.88

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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.