Home / 20,261.43-27,962.18-11,310.68

Finding the Fourth Proportional to 20,261.43, 27,962.18 and 11,310.68

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Solution

The fourth proportional to 20,261.43, 27,962.18 and 11,310.68 is: 15,609.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.43 : 27,962.18 = 11,310.68 : x
  2. Step 2: Convert to fraction form
    20,261.43/27,962.18 = 11,310.68/x
  3. Step 3: Cross multiply
    20,261.43x = 27,962.18 × 11,310.68
  4. Step 4: Simplify right side
    20,261.43x = 316,271,270.08
  5. Step 5: Solve for x
    x = 316,271,270.08/20,261.43
  6. Step 6: Final answer
    x = 15,609.52

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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.