Home / 20,207.36-27,886.09-11,254.33

Finding the Fourth Proportional to 20,207.36, 27,886.09 and 11,254.33

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Solution

The fourth proportional to 20,207.36, 27,886.09 and 11,254.33 is: 15,530.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.36 : 27,886.09 = 11,254.33 : x
  2. Step 2: Convert to fraction form
    20,207.36/27,886.09 = 11,254.33/x
  3. Step 3: Cross multiply
    20,207.36x = 27,886.09 × 11,254.33
  4. Step 4: Simplify right side
    20,207.36x = 313,839,259.27
  5. Step 5: Solve for x
    x = 313,839,259.27/20,207.36
  6. Step 6: Final answer
    x = 15,530.94

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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.