Home / 20,308.58-28,023.92-11,354.84

Finding the Fourth Proportional to 20,308.58, 28,023.92 and 11,354.84

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Solution

The fourth proportional to 20,308.58, 28,023.92 and 11,354.84 is: 15,668.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308.58 : 28,023.92 = 11,354.84 : x
  2. Step 2: Convert to fraction form
    20,308.58/28,023.92 = 11,354.84/x
  3. Step 3: Cross multiply
    20,308.58x = 28,023.92 × 11,354.84
  4. Step 4: Simplify right side
    20,308.58x = 318,207,127.77
  5. Step 5: Solve for x
    x = 318,207,127.77/20,308.58
  6. Step 6: Final answer
    x = 15,668.61

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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.