Home / 20,327.28-30,468.68-10,467.15

Finding the Fourth Proportional to 20,327.28, 30,468.68 and 10,467.15

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Solution

The fourth proportional to 20,327.28, 30,468.68 and 10,467.15 is: 15,689.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.28 : 30,468.68 = 10,467.15 : x
  2. Step 2: Convert to fraction form
    20,327.28/30,468.68 = 10,467.15/x
  3. Step 3: Cross multiply
    20,327.28x = 30,468.68 × 10,467.15
  4. Step 4: Simplify right side
    20,327.28x = 318,920,243.86
  5. Step 5: Solve for x
    x = 318,920,243.86/20,327.28
  6. Step 6: Final answer
    x = 15,689.27

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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.