Home / 19,788.94-27,306.24-15,765.97

Finding the Fourth Proportional to 19,788.94, 27,306.24 and 15,765.97

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Solution

The fourth proportional to 19,788.94, 27,306.24 and 15,765.97 is: 21,755.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.94 : 27,306.24 = 15,765.97 : x
  2. Step 2: Convert to fraction form
    19,788.94/27,306.24 = 15,765.97/x
  3. Step 3: Cross multiply
    19,788.94x = 27,306.24 × 15,765.97
  4. Step 4: Simplify right side
    19,788.94x = 430,509,424.80
  5. Step 5: Solve for x
    x = 430,509,424.80/19,788.94
  6. Step 6: Final answer
    x = 21,755.05

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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.