Home / 20,609.58-28,464.84-13,567.44

Finding the Fourth Proportional to 20,609.58, 28,464.84 and 13,567.44

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Solution

The fourth proportional to 20,609.58, 28,464.84 and 13,567.44 is: 18,738.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609.58 : 28,464.84 = 13,567.44 : x
  2. Step 2: Convert to fraction form
    20,609.58/28,464.84 = 13,567.44/x
  3. Step 3: Cross multiply
    20,609.58x = 28,464.84 × 13,567.44
  4. Step 4: Simplify right side
    20,609.58x = 386,195,008.81
  5. Step 5: Solve for x
    x = 386,195,008.81/20,609.58
  6. Step 6: Final answer
    x = 18,738.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.