Home / 20,261.60-27,585.92-20,199.20

Finding the Fourth Proportional to 20,261.60, 27,585.92 and 20,199.20

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Solution

The fourth proportional to 20,261.60, 27,585.92 and 20,199.20 is: 27,500.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.60 : 27,585.92 = 20,199.20 : x
  2. Step 2: Convert to fraction form
    20,261.60/27,585.92 = 20,199.20/x
  3. Step 3: Cross multiply
    20,261.60x = 27,585.92 × 20,199.20
  4. Step 4: Simplify right side
    20,261.60x = 557,213,515.26
  5. Step 5: Solve for x
    x = 557,213,515.26/20,261.60
  6. Step 6: Final answer
    x = 27,500.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.