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Finding the Fourth Proportional to 20,547.98, 30,794.97 and 11,191.94

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Solution

The fourth proportional to 20,547.98, 30,794.97 and 11,191.94 is: 16,773.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.98 : 30,794.97 = 11,191.94 : x
  2. Step 2: Convert to fraction form
    20,547.98/30,794.97 = 11,191.94/x
  3. Step 3: Cross multiply
    20,547.98x = 30,794.97 × 11,191.94
  4. Step 4: Simplify right side
    20,547.98x = 344,655,456.54
  5. Step 5: Solve for x
    x = 344,655,456.54/20,547.98
  6. Step 6: Final answer
    x = 16,773.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.