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Finding the Fourth Proportional to 21,843.03, 32,764.57 and 6,645.72

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Solution

The fourth proportional to 21,843.03, 32,764.57 and 6,645.72 is: 9,968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843.03 : 32,764.57 = 6,645.72 : x
  2. Step 2: Convert to fraction form
    21,843.03/32,764.57 = 6,645.72/x
  3. Step 3: Cross multiply
    21,843.03x = 32,764.57 × 6,645.72
  4. Step 4: Simplify right side
    21,843.03x = 217,744,158.14
  5. Step 5: Solve for x
    x = 217,744,158.14/21,843.03
  6. Step 6: Final answer
    x = 9,968.59

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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.