Home / 28,586.82-39,446.65-15,836.61

Finding the Fourth Proportional to 28,586.82, 39,446.65 and 15,836.61

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Solution

The fourth proportional to 28,586.82, 39,446.65 and 15,836.61 is: 21,852.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,586.82 : 39,446.65 = 15,836.61 : x
  2. Step 2: Convert to fraction form
    28,586.82/39,446.65 = 15,836.61/x
  3. Step 3: Cross multiply
    28,586.82x = 39,446.65 × 15,836.61
  4. Step 4: Simplify right side
    28,586.82x = 624,701,290.50
  5. Step 5: Solve for x
    x = 624,701,290.50/28,586.82
  6. Step 6: Final answer
    x = 21,852.77

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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.