Home / 20,304.96-28,023.42-11,353

Finding the Fourth Proportional to 20,304.96, 28,023.42 and 11,353

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Solution

The fourth proportional to 20,304.96, 28,023.42 and 11,353 is: 15,668.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.96 : 28,023.42 = 11,353 : x
  2. Step 2: Convert to fraction form
    20,304.96/28,023.42 = 11,353/x
  3. Step 3: Cross multiply
    20,304.96x = 28,023.42 × 11,353
  4. Step 4: Simplify right side
    20,304.96x = 318,149,887.26
  5. Step 5: Solve for x
    x = 318,149,887.26/20,304.96
  6. Step 6: Final answer
    x = 15,668.58

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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.