Home / 20,524.76-28,320.62-11,907.82

Finding the Fourth Proportional to 20,524.76, 28,320.62 and 11,907.82

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Solution

The fourth proportional to 20,524.76, 28,320.62 and 11,907.82 is: 16,430.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,524.76 : 28,320.62 = 11,907.82 : x
  2. Step 2: Convert to fraction form
    20,524.76/28,320.62 = 11,907.82/x
  3. Step 3: Cross multiply
    20,524.76x = 28,320.62 × 11,907.82
  4. Step 4: Simplify right side
    20,524.76x = 337,236,714.91
  5. Step 5: Solve for x
    x = 337,236,714.91/20,524.76
  6. Step 6: Final answer
    x = 16,430.73

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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.