Home / 38,207.92-57,312.68-11,912.88

Finding the Fourth Proportional to 38,207.92, 57,312.68 and 11,912.88

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Solution

The fourth proportional to 38,207.92, 57,312.68 and 11,912.88 is: 17,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,207.92 : 57,312.68 = 11,912.88 : x
  2. Step 2: Convert to fraction form
    38,207.92/57,312.68 = 11,912.88/x
  3. Step 3: Cross multiply
    38,207.92x = 57,312.68 × 11,912.88
  4. Step 4: Simplify right side
    38,207.92x = 682,759,079.32
  5. Step 5: Solve for x
    x = 682,759,079.32/38,207.92
  6. Step 6: Final answer
    x = 17,869.57

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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.