Home / 19,979.21-27,571.28-11,026.71

Finding the Fourth Proportional to 19,979.21, 27,571.28 and 11,026.71

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Solution

The fourth proportional to 19,979.21, 27,571.28 and 11,026.71 is: 15,216.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.21 : 27,571.28 = 11,026.71 : x
  2. Step 2: Convert to fraction form
    19,979.21/27,571.28 = 11,026.71/x
  3. Step 3: Cross multiply
    19,979.21x = 27,571.28 × 11,026.71
  4. Step 4: Simplify right side
    19,979.21x = 304,020,453.76
  5. Step 5: Solve for x
    x = 304,020,453.76/19,979.21
  6. Step 6: Final answer
    x = 15,216.84

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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.