Home / 20,582.73-28,404.27-11,151.32

Finding the Fourth Proportional to 20,582.73, 28,404.27 and 11,151.32

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Solution

The fourth proportional to 20,582.73, 28,404.27 and 11,151.32 is: 15,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.73 : 28,404.27 = 11,151.32 : x
  2. Step 2: Convert to fraction form
    20,582.73/28,404.27 = 11,151.32/x
  3. Step 3: Cross multiply
    20,582.73x = 28,404.27 × 11,151.32
  4. Step 4: Simplify right side
    20,582.73x = 316,744,962.12
  5. Step 5: Solve for x
    x = 316,744,962.12/20,582.73
  6. Step 6: Final answer
    x = 15,388.87

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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.