Home / 20,747.82-28,630.84-11,794.08

Finding the Fourth Proportional to 20,747.82, 28,630.84 and 11,794.08

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Solution

The fourth proportional to 20,747.82, 28,630.84 and 11,794.08 is: 16,275.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.82 : 28,630.84 = 11,794.08 : x
  2. Step 2: Convert to fraction form
    20,747.82/28,630.84 = 11,794.08/x
  3. Step 3: Cross multiply
    20,747.82x = 28,630.84 × 11,794.08
  4. Step 4: Simplify right side
    20,747.82x = 337,674,417.43
  5. Step 5: Solve for x
    x = 337,674,417.43/20,747.82
  6. Step 6: Final answer
    x = 16,275.18

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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.