Home / 30,308.28-45,481.32-11,589.88

Finding the Fourth Proportional to 30,308.28, 45,481.32 and 11,589.88

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Solution

The fourth proportional to 30,308.28, 45,481.32 and 11,589.88 is: 17,392.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,308.28 : 45,481.32 = 11,589.88 : x
  2. Step 2: Convert to fraction form
    30,308.28/45,481.32 = 11,589.88/x
  3. Step 3: Cross multiply
    30,308.28x = 45,481.32 × 11,589.88
  4. Step 4: Simplify right side
    30,308.28x = 527,123,041.04
  5. Step 5: Solve for x
    x = 527,123,041.04/30,308.28
  6. Step 6: Final answer
    x = 17,392.05

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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.