Home / 38,338.31-52,910.11-21,574.55

Finding the Fourth Proportional to 38,338.31, 52,910.11 and 21,574.55

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Solution

The fourth proportional to 38,338.31, 52,910.11 and 21,574.55 is: 29,774.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,338.31 : 52,910.11 = 21,574.55 : x
  2. Step 2: Convert to fraction form
    38,338.31/52,910.11 = 21,574.55/x
  3. Step 3: Cross multiply
    38,338.31x = 52,910.11 × 21,574.55
  4. Step 4: Simplify right side
    38,338.31x = 1,141,511,972.94
  5. Step 5: Solve for x
    x = 1,141,511,972.94/38,338.31
  6. Step 6: Final answer
    x = 29,774.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.