Home / 38,338.88-57,508.56-13,378.84

Finding the Fourth Proportional to 38,338.88, 57,508.56 and 13,378.84

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Solution

The fourth proportional to 38,338.88, 57,508.56 and 13,378.84 is: 20,068.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,338.88 : 57,508.56 = 13,378.84 : x
  2. Step 2: Convert to fraction form
    38,338.88/57,508.56 = 13,378.84/x
  3. Step 3: Cross multiply
    38,338.88x = 57,508.56 × 13,378.84
  4. Step 4: Simplify right side
    38,338.88x = 769,397,822.87
  5. Step 5: Solve for x
    x = 769,397,822.87/38,338.88
  6. Step 6: Final answer
    x = 20,068.34

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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.