Home / 19,721.14-27,215.31-10,768.71

Finding the Fourth Proportional to 19,721.14, 27,215.31 and 10,768.71

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Solution

The fourth proportional to 19,721.14, 27,215.31 and 10,768.71 is: 14,860.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.14 : 27,215.31 = 10,768.71 : x
  2. Step 2: Convert to fraction form
    19,721.14/27,215.31 = 10,768.71/x
  3. Step 3: Cross multiply
    19,721.14x = 27,215.31 × 10,768.71
  4. Step 4: Simplify right side
    19,721.14x = 293,073,780.95
  5. Step 5: Solve for x
    x = 293,073,780.95/19,721.14
  6. Step 6: Final answer
    x = 14,860.89

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Similar ratio
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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.