Home / 20,697.82-28,562.97-11,266.36

Finding the Fourth Proportional to 20,697.82, 28,562.97 and 11,266.36

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Solution

The fourth proportional to 20,697.82, 28,562.97 and 11,266.36 is: 15,547.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.82 : 28,562.97 = 11,266.36 : x
  2. Step 2: Convert to fraction form
    20,697.82/28,562.97 = 11,266.36/x
  3. Step 3: Cross multiply
    20,697.82x = 28,562.97 × 11,266.36
  4. Step 4: Simplify right side
    20,697.82x = 321,800,702.69
  5. Step 5: Solve for x
    x = 321,800,702.69/20,697.82
  6. Step 6: Final answer
    x = 15,547.57

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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.