Home / 19,977.94-27,570.27-11,480.28

Finding the Fourth Proportional to 19,977.94, 27,570.27 and 11,480.28

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Solution

The fourth proportional to 19,977.94, 27,570.27 and 11,480.28 is: 15,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,977.94 : 27,570.27 = 11,480.28 : x
  2. Step 2: Convert to fraction form
    19,977.94/27,570.27 = 11,480.28/x
  3. Step 3: Cross multiply
    19,977.94x = 27,570.27 × 11,480.28
  4. Step 4: Simplify right side
    19,977.94x = 316,514,514.02
  5. Step 5: Solve for x
    x = 316,514,514.02/19,977.94
  6. Step 6: Final answer
    x = 15,843.20

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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.