Home / 20,270.60-27,968.48-11,885.48

Finding the Fourth Proportional to 20,270.60, 27,968.48 and 11,885.48

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Solution

The fourth proportional to 20,270.60, 27,968.48 and 11,885.48 is: 16,399.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270.60 : 27,968.48 = 11,885.48 : x
  2. Step 2: Convert to fraction form
    20,270.60/27,968.48 = 11,885.48/x
  3. Step 3: Cross multiply
    20,270.60x = 27,968.48 × 11,885.48
  4. Step 4: Simplify right side
    20,270.60x = 332,418,809.67
  5. Step 5: Solve for x
    x = 332,418,809.67/20,270.60
  6. Step 6: Final answer
    x = 16,399.06

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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.