Home / 38,383.80-57,575.70-12,091.20

Finding the Fourth Proportional to 38,383.80, 57,575.70 and 12,091.20

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Solution

The fourth proportional to 38,383.80, 57,575.70 and 12,091.20 is: 18,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,383.80 : 57,575.70 = 12,091.20 : x
  2. Step 2: Convert to fraction form
    38,383.80/57,575.70 = 12,091.20/x
  3. Step 3: Cross multiply
    38,383.80x = 57,575.70 × 12,091.20
  4. Step 4: Simplify right side
    38,383.80x = 696,159,303.84
  5. Step 5: Solve for x
    x = 696,159,303.84/38,383.80
  6. Step 6: Final answer
    x = 18,136.80

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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.