Home / 20,134.36-27,781.14-11,747.08

Finding the Fourth Proportional to 20,134.36, 27,781.14 and 11,747.08

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Solution

The fourth proportional to 20,134.36, 27,781.14 and 11,747.08 is: 16,208.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.36 : 27,781.14 = 11,747.08 : x
  2. Step 2: Convert to fraction form
    20,134.36/27,781.14 = 11,747.08/x
  3. Step 3: Cross multiply
    20,134.36x = 27,781.14 × 11,747.08
  4. Step 4: Simplify right side
    20,134.36x = 326,347,274.07
  5. Step 5: Solve for x
    x = 326,347,274.07/20,134.36
  6. Step 6: Final answer
    x = 16,208.48

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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.