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Finding the Fourth Proportional to 21,043.82, 31,565.82 and 6,252.88

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Solution

The fourth proportional to 21,043.82, 31,565.82 and 6,252.88 is: 9,379.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.82 : 31,565.82 = 6,252.88 : x
  2. Step 2: Convert to fraction form
    21,043.82/31,565.82 = 6,252.88/x
  3. Step 3: Cross multiply
    21,043.82x = 31,565.82 × 6,252.88
  4. Step 4: Simplify right side
    21,043.82x = 197,377,284.56
  5. Step 5: Solve for x
    x = 197,377,284.56/21,043.82
  6. Step 6: Final answer
    x = 9,379.35

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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.