Home / 38,157.45-57,239.82-11,855.13

Finding the Fourth Proportional to 38,157.45, 57,239.82 and 11,855.13

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Solution

The fourth proportional to 38,157.45, 57,239.82 and 11,855.13 is: 17,783.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,157.45 : 57,239.82 = 11,855.13 : x
  2. Step 2: Convert to fraction form
    38,157.45/57,239.82 = 11,855.13/x
  3. Step 3: Cross multiply
    38,157.45x = 57,239.82 × 11,855.13
  4. Step 4: Simplify right side
    38,157.45x = 678,585,507.28
  5. Step 5: Solve for x
    x = 678,585,507.28/38,157.45
  6. Step 6: Final answer
    x = 17,783.83

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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.