Home / 20,697.98-28,562.42-11,744.95

Finding the Fourth Proportional to 20,697.98, 28,562.42 and 11,744.95

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Solution

The fourth proportional to 20,697.98, 28,562.42 and 11,744.95 is: 16,207.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.98 : 28,562.42 = 11,744.95 : x
  2. Step 2: Convert to fraction form
    20,697.98/28,562.42 = 11,744.95/x
  3. Step 3: Cross multiply
    20,697.98x = 28,562.42 × 11,744.95
  4. Step 4: Simplify right side
    20,697.98x = 335,464,194.78
  5. Step 5: Solve for x
    x = 335,464,194.78/20,697.98
  6. Step 6: Final answer
    x = 16,207.58

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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.