Home / 19,721.76-27,216.18-10,769.10

Finding the Fourth Proportional to 19,721.76, 27,216.18 and 10,769.10

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Solution

The fourth proportional to 19,721.76, 27,216.18 and 10,769.10 is: 14,861.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.76 : 27,216.18 = 10,769.10 : x
  2. Step 2: Convert to fraction form
    19,721.76/27,216.18 = 10,769.10/x
  3. Step 3: Cross multiply
    19,721.76x = 27,216.18 × 10,769.10
  4. Step 4: Simplify right side
    19,721.76x = 293,093,764.04
  5. Step 5: Solve for x
    x = 293,093,764.04/19,721.76
  6. Step 6: Final answer
    x = 14,861.44

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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.