Home / 21,486.96-32,235.10-8,836.79

Finding the Fourth Proportional to 21,486.96, 32,235.10 and 8,836.79

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Solution

The fourth proportional to 21,486.96, 32,235.10 and 8,836.79 is: 13,257.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.96 : 32,235.10 = 8,836.79 : x
  2. Step 2: Convert to fraction form
    21,486.96/32,235.10 = 8,836.79/x
  3. Step 3: Cross multiply
    21,486.96x = 32,235.10 × 8,836.79
  4. Step 4: Simplify right side
    21,486.96x = 284,854,626.06
  5. Step 5: Solve for x
    x = 284,854,626.06/21,486.96
  6. Step 6: Final answer
    x = 13,257.09

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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.