Home / 38,138.84-57,205.70-13,179.22

Finding the Fourth Proportional to 38,138.84, 57,205.70 and 13,179.22

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Solution

The fourth proportional to 38,138.84, 57,205.70 and 13,179.22 is: 19,767.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,138.84 : 57,205.70 = 13,179.22 : x
  2. Step 2: Convert to fraction form
    38,138.84/57,205.70 = 13,179.22/x
  3. Step 3: Cross multiply
    38,138.84x = 57,205.70 × 13,179.22
  4. Step 4: Simplify right side
    38,138.84x = 753,926,505.55
  5. Step 5: Solve for x
    x = 753,926,505.55/38,138.84
  6. Step 6: Final answer
    x = 19,767.95

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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.