Home / 19,721.58-27,215.39-10,768.85

Finding the Fourth Proportional to 19,721.58, 27,215.39 and 10,768.85

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Solution

The fourth proportional to 19,721.58, 27,215.39 and 10,768.85 is: 14,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.58 : 27,215.39 = 10,768.85 : x
  2. Step 2: Convert to fraction form
    19,721.58/27,215.39 = 10,768.85/x
  3. Step 3: Cross multiply
    19,721.58x = 27,215.39 × 10,768.85
  4. Step 4: Simplify right side
    19,721.58x = 293,078,445.50
  5. Step 5: Solve for x
    x = 293,078,445.50/19,721.58
  6. Step 6: Final answer
    x = 14,860.80

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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.