Home / 20,132.22-27,773.07-15,408.30

Finding the Fourth Proportional to 20,132.22, 27,773.07 and 15,408.30

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Solution

The fourth proportional to 20,132.22, 27,773.07 and 15,408.30 is: 21,256.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.22 : 27,773.07 = 15,408.30 : x
  2. Step 2: Convert to fraction form
    20,132.22/27,773.07 = 15,408.30/x
  3. Step 3: Cross multiply
    20,132.22x = 27,773.07 × 15,408.30
  4. Step 4: Simplify right side
    20,132.22x = 427,935,794.48
  5. Step 5: Solve for x
    x = 427,935,794.48/20,132.22
  6. Step 6: Final answer
    x = 21,256.26

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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.