Home / 20,748.56-28,631.88-11,794.82

Finding the Fourth Proportional to 20,748.56, 28,631.88 and 11,794.82

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Solution

The fourth proportional to 20,748.56, 28,631.88 and 11,794.82 is: 16,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.56 : 28,631.88 = 11,794.82 : x
  2. Step 2: Convert to fraction form
    20,748.56/28,631.88 = 11,794.82/x
  3. Step 3: Cross multiply
    20,748.56x = 28,631.88 × 11,794.82
  4. Step 4: Simplify right side
    20,748.56x = 337,707,727.70
  5. Step 5: Solve for x
    x = 337,707,727.70/20,748.56
  6. Step 6: Final answer
    x = 16,276.20

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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.