Home / 20,741.67-28,627.56-11,788.20

Finding the Fourth Proportional to 20,741.67, 28,627.56 and 11,788.20

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Solution

The fourth proportional to 20,741.67, 28,627.56 and 11,788.20 is: 16,270.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.67 : 28,627.56 = 11,788.20 : x
  2. Step 2: Convert to fraction form
    20,741.67/28,627.56 = 11,788.20/x
  3. Step 3: Cross multiply
    20,741.67x = 28,627.56 × 11,788.20
  4. Step 4: Simplify right side
    20,741.67x = 337,467,402.79
  5. Step 5: Solve for x
    x = 337,467,402.79/20,741.67
  6. Step 6: Final answer
    x = 16,270.02

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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.