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Finding the Fourth Proportional to 21,486.98, 32,230.06 and 8,833.98

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Solution

The fourth proportional to 21,486.98, 32,230.06 and 8,833.98 is: 13,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.98 : 32,230.06 = 8,833.98 : x
  2. Step 2: Convert to fraction form
    21,486.98/32,230.06 = 8,833.98/x
  3. Step 3: Cross multiply
    21,486.98x = 32,230.06 × 8,833.98
  4. Step 4: Simplify right side
    21,486.98x = 284,719,705.44
  5. Step 5: Solve for x
    x = 284,719,705.44/21,486.98
  6. Step 6: Final answer
    x = 13,250.80

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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.