Home / 27,994.14-38,631.24-15,418.80

Finding the Fourth Proportional to 27,994.14, 38,631.24 and 15,418.80

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Solution

The fourth proportional to 27,994.14, 38,631.24 and 15,418.80 is: 21,277.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,994.14 : 38,631.24 = 15,418.80 : x
  2. Step 2: Convert to fraction form
    27,994.14/38,631.24 = 15,418.80/x
  3. Step 3: Cross multiply
    27,994.14x = 38,631.24 × 15,418.80
  4. Step 4: Simplify right side
    27,994.14x = 595,647,363.31
  5. Step 5: Solve for x
    x = 595,647,363.31/27,994.14
  6. Step 6: Final answer
    x = 21,277.57

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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.