Home / 28,083.97-38,757.45-15,338.34

Finding the Fourth Proportional to 28,083.97, 38,757.45 and 15,338.34

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Solution

The fourth proportional to 28,083.97, 38,757.45 and 15,338.34 is: 21,167.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.97 : 38,757.45 = 15,338.34 : x
  2. Step 2: Convert to fraction form
    28,083.97/38,757.45 = 15,338.34/x
  3. Step 3: Cross multiply
    28,083.97x = 38,757.45 × 15,338.34
  4. Step 4: Simplify right side
    28,083.97x = 594,474,945.63
  5. Step 5: Solve for x
    x = 594,474,945.63/28,083.97
  6. Step 6: Final answer
    x = 21,167.77

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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.