Home / 20,031.82-27,642.06-11,079.13

Finding the Fourth Proportional to 20,031.82, 27,642.06 and 11,079.13

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Solution

The fourth proportional to 20,031.82, 27,642.06 and 11,079.13 is: 15,288.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.82 : 27,642.06 = 11,079.13 : x
  2. Step 2: Convert to fraction form
    20,031.82/27,642.06 = 11,079.13/x
  3. Step 3: Cross multiply
    20,031.82x = 27,642.06 × 11,079.13
  4. Step 4: Simplify right side
    20,031.82x = 306,250,021.09
  5. Step 5: Solve for x
    x = 306,250,021.09/20,031.82
  6. Step 6: Final answer
    x = 15,288.18

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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.