Home / 20,207.53-27,887.25-11,255.03

Finding the Fourth Proportional to 20,207.53, 27,887.25 and 11,255.03

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Solution

The fourth proportional to 20,207.53, 27,887.25 and 11,255.03 is: 15,532.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.53 : 27,887.25 = 11,255.03 : x
  2. Step 2: Convert to fraction form
    20,207.53/27,887.25 = 11,255.03/x
  3. Step 3: Cross multiply
    20,207.53x = 27,887.25 × 11,255.03
  4. Step 4: Simplify right side
    20,207.53x = 313,871,779.09
  5. Step 5: Solve for x
    x = 313,871,779.09/20,207.53
  6. Step 6: Final answer
    x = 15,532.42

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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.