Home / 38,292.09-57,438.12-11,998.89

Finding the Fourth Proportional to 38,292.09, 57,438.12 and 11,998.89

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Solution

The fourth proportional to 38,292.09, 57,438.12 and 11,998.89 is: 17,998.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,292.09 : 57,438.12 = 11,998.89 : x
  2. Step 2: Convert to fraction form
    38,292.09/57,438.12 = 11,998.89/x
  3. Step 3: Cross multiply
    38,292.09x = 57,438.12 × 11,998.89
  4. Step 4: Simplify right side
    38,292.09x = 689,193,683.69
  5. Step 5: Solve for x
    x = 689,193,683.69/38,292.09
  6. Step 6: Final answer
    x = 17,998.33

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Double scale
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Similar ratio
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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.