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Finding the Fourth Proportional to 27,676.53, 38,193.60 and 15,740.60

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Solution

The fourth proportional to 27,676.53, 38,193.60 and 15,740.60 is: 21,722.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,676.53 : 38,193.60 = 15,740.60 : x
  2. Step 2: Convert to fraction form
    27,676.53/38,193.60 = 15,740.60/x
  3. Step 3: Cross multiply
    27,676.53x = 38,193.60 × 15,740.60
  4. Step 4: Simplify right side
    27,676.53x = 601,189,989.19
  5. Step 5: Solve for x
    x = 601,189,989.19/27,676.53
  6. Step 6: Final answer
    x = 21,722.01

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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.