Home / 19,721.91-27,215.02-10,768.88

Finding the Fourth Proportional to 19,721.91, 27,215.02 and 10,768.88

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Solution

The fourth proportional to 19,721.91, 27,215.02 and 10,768.88 is: 14,860.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.91 : 27,215.02 = 10,768.88 : x
  2. Step 2: Convert to fraction form
    19,721.91/27,215.02 = 10,768.88/x
  3. Step 3: Cross multiply
    19,721.91x = 27,215.02 × 10,768.88
  4. Step 4: Simplify right side
    19,721.91x = 293,075,366.08
  5. Step 5: Solve for x
    x = 293,075,366.08/19,721.91
  6. Step 6: Final answer
    x = 14,860.39

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Half scale
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Double scale
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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.