Home / 38,510.94-57,771.28-13,215.38

Finding the Fourth Proportional to 38,510.94, 57,771.28 and 13,215.38

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Solution

The fourth proportional to 38,510.94, 57,771.28 and 13,215.38 is: 19,824.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,510.94 : 57,771.28 = 13,215.38 : x
  2. Step 2: Convert to fraction form
    38,510.94/57,771.28 = 13,215.38/x
  3. Step 3: Cross multiply
    38,510.94x = 57,771.28 × 13,215.38
  4. Step 4: Simplify right side
    38,510.94x = 763,469,063.35
  5. Step 5: Solve for x
    x = 763,469,063.35/38,510.94
  6. Step 6: Final answer
    x = 19,824.73

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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.