Home / 38,778.89-58,166.01-13,817.61

Finding the Fourth Proportional to 38,778.89, 58,166.01 and 13,817.61

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Solution

The fourth proportional to 38,778.89, 58,166.01 and 13,817.61 is: 20,725.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,778.89 : 58,166.01 = 13,817.61 : x
  2. Step 2: Convert to fraction form
    38,778.89/58,166.01 = 13,817.61/x
  3. Step 3: Cross multiply
    38,778.89x = 58,166.01 × 13,817.61
  4. Step 4: Simplify right side
    38,778.89x = 803,715,241.44
  5. Step 5: Solve for x
    x = 803,715,241.44/38,778.89
  6. Step 6: Final answer
    x = 20,725.59

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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.