Home / 38,338.71-57,478.89-12,028.29

Finding the Fourth Proportional to 38,338.71, 57,478.89 and 12,028.29

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Solution

The fourth proportional to 38,338.71, 57,478.89 and 12,028.29 is: 18,033.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,338.71 : 57,478.89 = 12,028.29 : x
  2. Step 2: Convert to fraction form
    38,338.71/57,478.89 = 12,028.29/x
  3. Step 3: Cross multiply
    38,338.71x = 57,478.89 × 12,028.29
  4. Step 4: Simplify right side
    38,338.71x = 691,372,757.80
  5. Step 5: Solve for x
    x = 691,372,757.80/38,338.71
  6. Step 6: Final answer
    x = 18,033.28

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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.